PRVI 6mm rem brass?

[Shawnba67]

I am putting together a 6AI and cant decide if i should start with 6mm or 7x57 brass. My reamer cuts a .278 neck. any one know the loaded diameters of either of these? thanks

 

[Plumsask]

You may have to neck turn your 7x57- I have a 6 AI and used straight 6rem winchester Brass. I have some 7x57 Norma sitting here and haven’t found a need to try it- accuracy is outstanding with some brass prep and neck clean up using Win brass

 

[TAJ45]

My guess is it's going to be close. Maybe no more than a skim cut, if that.
What is the brass neck wall thickness? .016 or less should work. Let us know.

 

[Shawnba67]

I think Im going to order the 7x57. I will report back, even if it takes to long!

 

[fyrewall]

Like having a loaded round to measure made from PPU 7X57 (big bunch bought cheap from Graf 6 years ago) neck .268 loaded round. Fired & un-sized .275 (I allow .001 for spring back), neck walls .014. Yes, I turn necks for both 7X57 & 6MM. The difference is that much more brass needs to be removed for the 7X57. For the 6MM a clean up suffices. I fire form 7X57 using COW (cream of wheat & pistol primers) and after the fireform process a 6mm bullet will not slip fit inside the un-turned 7X57 neck. I turn necks after fire forming then no expander button.

I am a fan of PPU brass and when 6mm brass was unavailable I used 7X57. Ultimate 6mm AI loads would probably use Norma 7X57 brass. The next batch of brass I buy for my 6mm AI will probably be 6mm PPU or Hornady. The 6mm AI is so much fun to shoot I now need a new barrel. Graf's has a sale on PPU 6mm brass.

The 6mm AI is a great choice but needs measured pace shooting - what twist rate is it going to be?

 

[Plumsask]

Like having a loaded round to measure made from PPU 7X57 (big bunch bought cheap from Graf 6 years ago) neck .268 loaded round. Fired & un-sized .275 (I allow .001 for spring back), neck walls .014. Yes, I turn necks for both 7X57 & 6MM. The difference is that much more brass needs to be removed for the 7X57. For the 6MM a clean up suffices. I fire form 7X57 using COW (cream of wheat & pistol primers) and after the fireform process a 6mm bullet will not slip fit inside the un-turned 7X57 neck. I turn necks after fire forming then no expander button.

I am a fan of PPU brass and when 6mm brass was unavailable I used 7X57. Ultimate 6mm AI loads would probably use Norma 7X57 brass. The next batch of brass I buy for my 6mm AI will probably be 6mm PPU or Hornady. The 6mm AI is so much fun to shoot I now need a new barrel. Graf's has a sale on PPU 6mm brass.

The 6mm AI is a great choice but needs measured pace shooting - what twist rate is it going to be?

Just out of curiousity- what did you get for Barrel life/round count out of your 6AI, I built one a year ago- and after load work up and a winter of coyote calling I have 296 on it. It’s an 1:8x26” Shilen.

 

[fyrewall]

Close to 2,000, a mix of 105's with H1000, Re23 and 87's with 4000MR after 5 years. Still shoots good for most rodents, I can hit a pop can size target most of the time at 500 (calm day). It is a McGowen D4 8 twist. Soon to be cloned.

 

[Plumsask]

Close to 2,000, a mix of 105's with H1000, Re23 and 87's with 4000MR after 5 years. Still shoots good for most rodents, I can hit a pop can size target most of the time at 500 (calm day). It is a McGowen D4 8 twist. Soon to be cloned.

I’ve been shooting 87&95 berger hunting vld’s with N-160 &N-165. Sure is a great round- made the mistake of building on a short action- I bought a donor action and once coyotes are done for the season I’ll swap it over to a long action and utilize that fast twist and still be able to feed from the mag...... live and learn

 

[Shawnba67]

Like having a loaded round to measure made from PPU 7X57 (big bunch bought cheap from Graf 6 years ago) neck .268 loaded round. Fired & un-sized .275 (I allow .001 for spring back), neck walls .014. Yes, I turn necks for both 7X57 & 6MM. The difference is that much more brass needs to be removed for the 7X57. For the 6MM a clean up suffices. I fire form 7X57 using COW (cream of wheat & pistol primers) and after the fireform process a 6mm bullet will not slip fit inside the un-turned 7X57 neck. I turn necks after fire forming then no expander button.

I am a fan of PPU brass and when 6mm brass was unavailable I used 7X57. Ultimate 6mm AI loads would probably use Norma 7X57 brass. The next batch of brass I buy for my 6mm AI will probably be 6mm PPU or Hornady. The 6mm AI is so much fun to shoot I now need a new barrel. Graf's has a sale on PPU 6mm brass.

The 6mm AI is a great choice but needs measured pace shooting - what twist rate is it going to be?

Ive got a 10twist #2 contour Shilen that Im planning on using. Just gonna be a hunting rig, yotes and deer So im planning 87vmax and 95gr Partitions. Always wanted one, now to see if its enough more than the always worthy 243!

 

[Plumsask]

Ive got a 10twist #2 contour Shilen that Im planning on using. Just gonna be a hunting rig, yotes and deer So im planning 87vmax and 95gr Partitions. Always wanted one, now to see if its enough more than the always worthy 243!

What’s the barrel length?

 

[Shawnba67]

What’s the barrel length?

24"

 

[jotrot]

Im needing some 6mm Rem. brass and I to was wanting to know about the quality of the PRVI brass ? Since there is a small selection. Hornady, Winchester, PRVI. Im I missing anymore options ?

Dont mean to hijack the thread, sorry

 

[Dusty Stevens]

The absolute pinnacle in 6mm brass is rws in 7x57. Its a lifetime brass but it will need work and specialized tools to get it right. Itll need to be formed in a bushing die, expanded and neck turned after fire forming with no bullet. Its a lot of work but its the best brass made by far