September 8, 2017, 10:34 PM | #1 |
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6 Remmy AI
I just dropped my GEW Mauser off at my gunsmith who is chambering a Bartlein barrel in 6mm AI, 1/7 twist. 26" with 11 degree target crown. Straight taper. Adjustable timney trigger also. He is also reaming me a sizing die blank from the chamber reamer.
I got a great deal, $100 for the barrel which was 32" and used by him for BR but after 600 rounds he couldn't use Berger's any more and the groups "opened up" from 1/8 moa to 1/4 moa. So he is cutting 5.5" off at the chamber end and 1/2" off the muzzle to re-crown. Meanwhile I'm getting to work on the stock. It is going to be a coyote gun and I'll probably try and bullets over 100 gr given the tight twist. I have never owned or loaded for an Ackley. Should be fun! |
September 9, 2017, 08:05 AM | #2 |
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great choice Mississippi, here is a good article from over at 6mm BR on the 6 AI.
http://www.6mmbr.com/gunweek042.html Just out of curiosity what brass will you be starting with and how will you be forming it
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September 9, 2017, 10:29 PM | #3 | |
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It seems that the simple solution is to shoot some factory 6mm through it with a brass I want to keep and from what I understand, a full power 6mm case will blow out nicely on one firing. Then I just do an anneal and I'm in business. |
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September 10, 2017, 05:43 AM | #4 | |
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September 10, 2017, 08:05 AM | #5 |
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Wait...
Did you say he's using the chamber reamer to do your sizing die? I thought sizing die was generally smaller, by a few thousandths, than the chamber. |
September 10, 2017, 08:43 AM | #6 | |
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I'm sorry, I meant to say he is using the chamber partner sizing reamer from PTG. Basically they are a set. I texted him this morning to verify and that is the case. The die will Also have to be hardned after reaming because blanks come soft. |
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September 12, 2017, 11:12 PM | #7 | |
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