PRC SAAMI Chamber Issue - The JGS AW2 (Alex Wheeler) Finish Reamer Fix

Ladd

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Well guys, I finally got the bolt click on my bergara 300 prc.
I am using lapua brass on its third firing.
I have seen this wonderful post from fellow Ladd and it explains it wonderfully.
I am going to buy the 300 prc Aw2 reamer and do it.
I don't have tools to remove the barrel.
Is there a problem doing it with the barrel and the action together?
Thank you very much
It is doable with a T-handle extension on the end of the reamer. The hard part would be feeding the sand paper into the chamber but it appears others have a work-a-round. The other hard part for me would not being able to physically see the reamer’s position. Just go slow.

 

Ladd

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Are y’all just hand turning the reamer?
Yes. With a T-Handle extension on the reamer or a tap and die handle on the reamer with the barrel removed. It doesn’t take too much.
 

EMC

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Thanks Ladd.
The other day I spoke with Bergara and they told me that they did not know about the problem in Spain or in the USA.
First I'm going to try to get them to do it, although I think they won't want to.
If they don't want, I'll do it.
Anyway if I don't use the reamer, the rifle is useless.
Cheers
 

Ladd

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Thanks Ladd.
The other day I spoke with Bergara and they told me that they did not know about the problem in Spain or in the USA.
First I'm going to try to get them to do it, although I think they won't want to.
If they don't want, I'll do it.
Anyway if I don't use the reamer, the rifle is useless.
Cheers
Good luck. Maybe they can do that in Spain. I don’t think a manufacturer would here in the states.
 

str8shooter

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This sucks hard as I just spent well over 2k$ on a Bergara hmr pro, rings/bases, bullets, dies, and Lapua brass. I had a 300 WM back in the day with clickers and swore off belted mag and to now have this is ridiculous.
 

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Yes. It sucks.
I have a good load and I can't use the rifle.
Now I have to spend $300 reamer + $300 micron sizing die or Hornady custom die.
Anyway, wait for the problem to come out.
You still have a larger chamber and it works fine.
It seems that with hornady brass you can shoot more times without problem, since the brass is less thick
 

EMC

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Ladd.
I have been looking at the tools necessary to remove the barrel and I am clear about what I need, but I have some doubts.
For the factory barrel of my bergara.
Is an external or internal action wrench better?
When I reassemble the barrel, how much torque is needed to tighten it?
Thank you
 

Ladd

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Ladd.
I have been looking at the tools necessary to remove the barrel and I am clear about what I need, but I have some doubts.
For the factory barrel of my bergara.
Is an external or internal action wrench better?
When I reassemble the barrel, how much torque is needed to tighten it?
Thank you
Either wrench will do but if you can get an internal one, they are easier.

I torgue the barrel to 80 ft-lbs (108 N-m).
 

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I'm not sure how tight Bergara tightens their barrels but if it's as tight as some others you'd be better off with an external.

There really is no need to remove the barrel to touch up the chamber with the reamer. It's not imperative that the chamber be polished.

Also, you don't need a custom sizing die if you use the reamer. That's the whole reason for the reamer so you can use a standard, saami die.
 

EMC

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Either wrench will do but if you can get an internal one, they are easier.

I torgue the barrel to 80 ft-lbs (108 N-m).
Thanks Ladd.
I'm going to start getting all the material.
 

EMC

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I'm not sure how tight Bergara tightens their barrels but if it's as tight as some others you'd be better off with an external.

There really is no need to remove the barrel to touch up the chamber with the reamer. It's not imperative that the chamber be polished.

Also, you don't need a custom sizing die if you use the reamer. That's the whole reason for the reamer so you can use a standard, saami die.
Thanks parshal
I don't know where I read, here or somewhere else, and Alex Wheeler says that you need a die that gives you a .530" measurement on the .2" line of the brass, for his reamer to work perfectly.
If not at some point the clickers may appear.
Right now I wear a wilson full and have a measurement of .531'5".
 

parshal

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Alex's reamer is a bit larger at the .200 line which allows a SAAMI spec sizer to actually size the base. I'm not sure I've seen the info you're talking about. I know on mine, and the others I've 'fixed', everyone uses a SAAMI die. I've been using a Forster and a Micron die and both size at the base. You can actually see a shinier spot at the .200 line where it's sizing a bit more since the brass expands a bit more there with Alex's reamer.
 

str8shooter

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I’m going to use 10 pieces of brass at first to fireform/barrel break in and then shoot a couple pressured loads and see if I get clickers. That way I don’t ruin all my brass.
 

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I’m going to use 10 pieces of brass at first to fireform/barrel break in and then shoot a couple pressured loads and see if I get clickers. That way I don’t ruin all my brass.
I am still using all the same brass I started with. Even the clickers and hard extraction brass is fine after reaming the chamber.
 

EMC

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Alex's reamer is a bit larger at the .200 line which allows a SAAMI spec sizer to actually size the base. I'm not sure I've seen the info you're talking about. I know on mine, and the others I've 'fixed', everyone uses a SAAMI die. I've been using a Forster and a Micron die and both size at the base. You can actually see a shinier spot at the .200 line where it's sizing a bit more since the brass expands a bit more there with Alex's reamer.
Alex's reamer is a bit larger at the .200 line which allows a SAAMI spec sizer to actually size the base. I'm not sure I've seen the info you're talking about. I know on mine, and the others I've 'fixed', everyone uses a SAAMI die. I've been using a Forster and a Micron die and both size at the base. You can actually see a shinier spot at the .200 line where it's sizing a bit more since the brass expands a bit more there with Alex's reamer.
I'm glad.
That way I don't have to buy another die.
But I'm sure I've read that somewhere.
If I find the link, I'll post it.
Well, the reamer is on its way.
I'm a little bit nervous.
I have never done something like this.
I hope I don't ruin the chamber
 

Ladd

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I'm glad.
That way I don't have to buy another die.
But I'm sure I've read that somewhere.
If I find the link, I'll post it.
Well, the reamer is on its way.
I'm a little bit nervous.
I have never done something like this.
I hope I don't ruin the chamber
Just take it slow and don't hurry. Don't be nervous.
 

Broz

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I'm glad.
That way I don't have to buy another die.
But I'm sure I've read that somewhere.
If I find the link, I'll post it.
Well, the reamer is on its way.
I'm a little bit nervous.
I have never done something like this.
I hope I don't ruin the chamber
You will be fine. Use cutting oil, clean reamer and chamber often, never turn the reamer counter clockwise and follow Ladd's tutorial. You will be surprised how easily and quickly the reamer will cut what is needed. It only takes a few turns. Just go slow and easy and you will 100% be fine.
 

EMC

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Thanks guys.
A pleasure to belong to this forum.
I have learned a lot by reading it.
I'll let you know how everything goes
 

EMC

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Alex's reamer is a bit larger at the .200 line which allows a SAAMI spec sizer to actually size the base. I'm not sure I've seen the info you're talking about. I know on mine, and the others I've 'fixed', everyone uses a SAAMI die. I've been using a Forster and a Micron die and both size at the base. You can actually see a shinier spot at the .200 line where it's sizing a bit more since the brass expands a bit more there with Alex's reamer.
Screenshot_2022-09-13-10-31-28-420_com.google.android.gms.jpgthis was what i read
 

parshal

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First I've seen of that. It seems most people use his reamer and still use a saami spec reamer.

It may be worth starting a thread asking if anyone has used his reamer and still had clickers that were fixed with a custom sizer.
 

EMC

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That thread is for the 6.5 prc, but I imagine that the 300 prc will be the same.
Yes, it would be a good idea to know how people are doing with just the reamer.
 

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Easy to check. You want about .025" of reduction at the .200 line after you size. .0015" ~.002" might work with some loads. .0005" ~.001" is not enough in my book.

Of course this is all after the chamber is reamed.
 
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str8shooter

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I shot some medium loads today with surplus powder and bullets to sight in the scope and fireform brass (75gr IMR 4831 jammed .015 with 175 nosler CC). Good thing is the Bergara HMR Pro seemed like it will be a shooter as 12 of the 15 rounds wend inside a quarter. Bad thing is new brass was .5295 on the 200. Fired brass was .5315 and after resized was .5305. Looks like I’m clicker bound after shooting full power loads.
 

EMC

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Mine is a Bergara hmr wilderness.
Firef brass 3x .5325" and sized with die wilson full .5315".
The same can still grow your brass to full power.
 

str8shooter

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Mine is a Bergara hmr wilderness.
Firef brass 3x .5325" and sized with die wilson full .5315".
The same can still grow your brass to full power.
Why not just order the bullet central die instead of reaming your chamber. Does it not work as intended?
 

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Just take it slow and don't hurry. Don't be nervous.
Ladd (my first LRO post IIRC)

Thanks to you and the others in this thread, I determined that my 6.5 PRC (custom build) needs the new reamer. I figured this out last Thursday/Friday after my experience at the range as I was honing in on what I'd hope would be my final range day before loading up a box of 2x fired ADG + Berger 156's + H1000 before my hunt in WY next week. I had had a *little* heavy lift the time before with 1x brass when I shot a couple loads while doing some final seating depth testing. I wrote those off as "pressure" boundaries.

I cleaned my bore like a madman for 4 hours on Friday but still could not chamber or eject the 2x fired and now fireformed brass without the telltale heavy lift and click. I borrowed a borescope to eliminate carbon ring as a culprit. Quick research led me here. BIG THANKS!!

Saturday thru yesterday I was in Idaho for my bro-in-law's funeral/etc, so this issue was all set aside. Yesterday, I called around to some local gunsmiths to find out if they knew about this and could help me out. "Yes" and "you're out 2 to 3 months" :(

Tonight and Saturday our range is open, so I have the smallest window to work with now before my son and I leave early Monday for WY. I have some options (dust off older rifles, sight in with some factory ammo, workup load with 1x brass, etc). But, I was wondering if you or someone you know are going to be headed north in the next days or weeks??? I understand that you are no longer in the "reamer rental" mode, but I thought I'd reach out to you anyway to see if there is ANY way you might rent/loan out your reamer one last time??? It would mean the world to me.

I would have asked you in a PM, but I don't know if LRO has that or if I have access to that (yet?), so I jumped in here.

Again, thanks to you and others who have helped to bring this issue and solution to light here!

Neil Taylor
Springville, UT
 

nwt59

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Ladd
I just looked at your messages and see that you sold your PRC reamer(s). Nevertheless, a big thanks for all of your (and others') invaluable contributions on this topic.
Neil
 

Tsgman

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Ladd (my first LRO post IIRC)

Thanks to you and the others in this thread, I determined that my 6.5 PRC (custom build) needs the new reamer. I figured this out last Thursday/Friday after my experience at the range as I was honing in on what I'd hope would be my final range day before loading up a box of 2x fired ADG + Berger 156's + H1000 before my hunt in WY next week. I had had a *little* heavy lift the time before with 1x brass when I shot a couple loads while doing some final seating depth testing. I wrote those off as "pressure" boundaries.

I cleaned my bore like a madman for 4 hours on Friday but still could not chamber or eject the 2x fired and now fireformed brass without the telltale heavy lift and click. I borrowed a borescope to eliminate carbon ring as a culprit. Quick research led me here. BIG THANKS!!

Saturday thru yesterday I was in Idaho for my bro-in-law's funeral/etc, so this issue was all set aside. Yesterday, I called around to some local gunsmiths to find out if they knew about this and could help me out. "Yes" and "you're out 2 to 3 months" :(

Tonight and Saturday our range is open, so I have the smallest window to work with now before my son and I leave early Monday for WY. I have some options (dust off older rifles, sight in with some factory ammo, workup load with 1x brass, etc). But, I was wondering if you or someone you know are going to be headed north in the next days or weeks??? I understand that you are no longer in the "reamer rental" mode, but I thought I'd reach out to you anyway to see if there is ANY way you might rent/loan out your reamer one last time??? It would mean the world to me.

I would have asked you in a PM, but I don't know if LRO has that or if I have access to that (yet?), so I jumped in here.

Again, thanks to you and others who have helped to bring this issue and solution to light here!

Neil Taylor
Springville, UT
I'm a sucker for being able to help someone out on a hunting trip.

I have the 6.5 PRC AW2 reamer with T handle. You don't even need to take the barrel off.

Edit, unable to send you a PM, so feel free to call. FiveO3 nine 5 7zero8Isix

Sent from my SM-G996U using Tapatalk
 
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Ladd

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Ladd (my first LRO post IIRC)

Thanks to you and the others in this thread, I determined that my 6.5 PRC (custom build) needs the new reamer. I figured this out last Thursday/Friday after my experience at the range as I was honing in on what I'd hope would be my final range day before loading up a box of 2x fired ADG + Berger 156's + H1000 before my hunt in WY next week. I had had a *little* heavy lift the time before with 1x brass when I shot a couple loads while doing some final seating depth testing. I wrote those off as "pressure" boundaries.

I cleaned my bore like a madman for 4 hours on Friday but still could not chamber or eject the 2x fired and now fireformed brass without the telltale heavy lift and click. I borrowed a borescope to eliminate carbon ring as a culprit. Quick research led me here. BIG THANKS!!

Saturday thru yesterday I was in Idaho for my bro-in-law's funeral/etc, so this issue was all set aside. Yesterday, I called around to some local gunsmiths to find out if they knew about this and could help me out. "Yes" and "you're out 2 to 3 months" :(

Tonight and Saturday our range is open, so I have the smallest window to work with now before my son and I leave early Monday for WY. I have some options (dust off older rifles, sight in with some factory ammo, workup load with 1x brass, etc). But, I was wondering if you or someone you know are going to be headed north in the next days or weeks??? I understand that you are no longer in the "reamer rental" mode, but I thought I'd reach out to you anyway to see if there is ANY way you might rent/loan out your reamer one last time??? It would mean the world to me.

I would have asked you in a PM, but I don't know if LRO has that or if I have access to that (yet?), so I jumped in here.

Again, thanks to you and others who have helped to bring this issue and solution to light here!

Neil Taylor
Springville, UT
Sorry, been hunting in Wyoming myself and just returned home. I have reamers for both PRCs but I doubt there is time to help now. Unless, you drive down here and I’ll fix it for you tomorrow, Sunday.

I have not been renting out the reamers. I am not wanting to turn this into a business and get charged by Venmo or PayPal.
 

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Took my rifle out for the first time since I used the reamer and it worked perfectly. No stiff bolt, still great accuracy, zero issues. Out of curiosity, how many chambers can a reamer do before it gets too dull?
 

Ladd

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Took my rifle out for the first time since I used the reamer and it worked perfectly. No stiff bolt, still great accuracy, zero issues. Out of curiosity, how many chambers can a reamer do before it gets too dull?
Good question that I do not know the answer to. I am sure they wear down but this reamer is really only removing a small amount of material near the web. My 300 PRC was lent out to one of the west's quality custom rifle makers to fix 6-7 customer's rifles with great reports that it did the job. I should keep track but that reamer probably has near 2-dozen jobs on it now and my 6.5 PRC maybe a 18x.
 
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OSOK - Crash

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Good question that I do not know the answer too. I am sure they wear down but this reamer is really only removing a small amount of material near the web. My 300 PRC was lent out to one of the west's quality custom rifle makers to fix 6-7 customer's rifles with great reports that it did the job. I should keep track but that reamer probably has near 2-dozen jobs on it now and my 6.5 PRC maybe a 18x.
I would say in a controlled environment on a lathe where you can control speeds and feeds, and it's not removing very much material, it could last hundreds of cuts.

Done by hand it could probably do the same if taken care of properly and went slow. But it's much more variable this way.
 

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Sorry, been hunting in Wyoming myself and just returned home. I have reamers for both PRCs but I doubt there is time to help now. Unless, you drive down here and I’ll fix it for you tomorrow, Sunday.

I have not been renting out the reamers. I am not wanting to turn this into a business and get charged by Venmo or PayPal.
Thanks, Ladd. Hope your WY hunt was successful! I am leaving with my son first thing in the morning (Monday) for the Little Greys area. Sunday commitments today. Yesterday I was supposed to call another forum member to discuss using/borrowing/renting his reamer, but the time got away from me. I ended up at the range sighting in using some factory loads - as well as a couple of loads I have from Gunwerks and MOA Rifles.

If you are heading to WY again soon, maybe we could work something out. I still have Idaho, Utah and Colorado.

Thanks!
Neil

(Trask - I will ping you today)
 

Ladd

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Thanks, Ladd. Hope your WY hunt was successful! I am leaving with my son first thing in the morning (Monday) for the Little Greys area. Sunday commitments today. Yesterday I was supposed to call another forum member to discuss using/borrowing/renting his reamer, but the time got away from me. I ended up at the range sighting in using some factory loads - as well as a couple of loads I have from Gunwerks and MOA Rifles.

If you are heading to WY again soon, maybe we could work something out. I still have Idaho, Utah and Colorado.

Thanks!
Neil

(Trask - I will ping you today)
I am in SLC almost every Monday. I'm sure we could work something out.

Good luck on the hunt. The area you are going had some nice weather come through and I bet the hunting is fantastic this week. It was foggy and rainy for us but we got it done. I took a buck with a crazy story to go with it but I am waiting for pics from my guide. He took some good pics through his spotter of the buck in his bed then the recovery the next day.
 

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I am in SLC almost every Monday. I'm sure we could work something out.

Good luck on the hunt. The area you are going had some nice weather come through and I bet the hunting is fantastic this week. It was foggy and rainy for us but we got it done. I took a buck with a crazy story to go with it but I am waiting for pics from my guide. He took some good pics through his spotter of the buck in his bed then the recovery the next day.
What time on Mondays? I'll be picking up my son in SLC tomorrow morning.
Where exactly did you hunt? G or H? What guide?
 

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Most saami dies are around .530 at the .2" line but many are polished out. So when I say thats what you need I am not saying you need a custom die, Im saying you need a die thats not oversized. I trust the Bullet Central dies the most but any die works if its made right. I have a die here that measures .533 at the base, same as the chamber. It would not size at all. Its out of spec. Many of the cheaper dies are out of spec. Know this, die or reamer prints are what they are supposed to be, not what they actually are.
 

Ladd

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What time on Mondays? I'll be picking up my son in SLC tomorrow morning.
Where exactly did you hunt? G or H? What guide?
I won’t be there this Monday but am usually in that office every Monday but the 5th Monday of the month. I leave the house at 3:30am then return home that night leaving the office ~5pm. Maybe I could meet you with the reamer on my way home one Monday.

I hunted with Star Valley Outfitters. They guide in both those units from the one camp. Great people. Awesome country and lots of saddle time. I won’t take this thread sideways any longer about the hunt but hit me up about the reamer whenever.
 

nwt59

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I won’t be there this Monday but am usually in that office every Monday but the 5th Monday of the month. I leave the house at 3:30am then return home that night leaving the office ~5pm. Maybe I could meet you with the reamer on my way home one Monday.

I hunted with Star Valley Outfitters. They guide in both those units from the one camp. Great people. Awesome country and lots of saddle time. I won’t take this thread sideways any longer about the hunt but hit me up about the reamer whenever.
PM sent
 

p47dman

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I have a new Model 70 coming in 6.5 PRC. Do you think I will have the same issues?
Is the ammo causing these problems? Such as the "click" you are describing?
 

Broz

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I have a new Model 70 coming in 6.5 PRC. Do you think I will have the same issues?
Is the ammo causing these problems? Such as the "click" you are describing?
You need to read this thread. It is not an ammo or die issue nor is it a rifle manufacturer issue. It is a SAAMI speced reamer issue and we have seen it in many brand rifles. That said if you only shoot factory ammo you should be ok providing you do a proper break in and clean the carbon out of the chamber and throat when needed.

These cheap bore scopes are great and at the same time one must realize they magnify things so much even smooth metal can look like craters on the moon at times. If we don't understand that we should not even look.
 

p47dman

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I actually did read every post in the thread. That was why I posted, to see if the finish reamer would have cured the problems I was having. And also, I did not know what the "click" was they were talking about.
 

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I’m definitely NOT the expert on PRC clicker issues, however, since some new folks are asking I’ll throw in my two cents. I rented the (Alex Wheeler) 6.5 PRC reamer from LRO member Desert Dan and made the extension (in pic).

I did not remove the barrel from either rifle I reamed. The material removal when you’re hand reaming is extremely minimal. My personal experience was that it was a very easy process and I believe you would have to really try hard to mess-up your chamber.

As others have noted, use lots of oil and take your time. 400/600 grit sandpaper to polish.

(We didn’t always experience “clickers”, but a hard bolt lift at very low charge weights)
 

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EMC

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Good morning guys.
The reamer has finally arrived.
Now I have to search for a t handle.
What size is the end?
is it 3/8?
 

Dallen0427

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I have two 6.5 PR’s that haven’t had much of a problem so far, but am only using Hornady brass which seems to help. I feel like I’m dancing on the edge with my loads and know if I don’t clean the rifle well at about 40 rounds, I start to experience stiff extraction ( maybe not a related problem). I’ll likely be asking around on here for a reamer to rent, but want to wait till after the seasons are done.
 

EMC

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JGS sells the T handles
When I bought the reamer I also asked for the t handle and they told me this:

Eduardo,
Sorry we only have clearance from our Commerce Department to export our chamber reamers and gauges.
Please let me know if you would like to order the reamer only.

Thank you

I'm going to send you an email asking what size I need
 

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