300 SAUM Imp

[kev77]

Thanks. I do want to explore a lower node. Am thinking may have started too high with my initial ladder test and only discernible node was around 2900-2020. At any rate my initial ladder started with MV of 2793 but that charge was jumping all around.

This load would probably be between 2800-2850 in a 30-32" barrel

 

[tom]

My 204.5, federal 210m, h4350 at 58.9 for a velocity of right at 2900 is where I ended up settling. I had my phone take a fall and lost all my previous pictures....but here's some of the better groups I've shot at the 1,000 yard matches so far since settling on this load.

Tom

 

[tom]

I've been keeping the seating at 3.347" to my comparator since March. In that time I've noted an advancement of .004" on my "touch" number. Today I set out to see if it wanted chased or left alone....it seems I'll chase it, but not a full value.



Let me take this opportunity to report on my thoughts about the ADG brass so far. First off all, I've NEVER sorted any of it. Secondly, it has held tune from the fireform + 1 cycle through the +8 cycle. Third, I have NEVER annealed it, and it has NEVER gave a different seating pressure on any cycle. So far so good, and it's going strong still at 8 reloads. The brass is dimensionally different, and is strong with a generous amount of solid web, and does require some retooling on chamber and die specs.

Tom

 

[TZaun]

That’s a good combo you’ve got going on there Tom. Thanks for the info.

 

[No i deer]

I've been keeping the seating at 3.347" to my comparator since March. In that time I've noted an advancement of .004" on my "touch" number. Today I set out to see if it wanted chased or left alone....it seems I'll chase it, but not a full value.

View attachment 1256191View attachment 1256192

Let me take this opportunity to report on my thoughts about the ADG brass so far. First off all, I've NEVER sorted any of it. Secondly, it has held tune from the fireform + 1 cycle through the +8 cycle. Third, I have NEVER annealed it, and it has NEVER gave a different seating pressure on any cycle. So far so good, and it's going strong still at 8 reloads. The brass is dimensionally different, and is strong with a generous amount of solid web, and does require some retooling on chamber and die specs.

Tom

Are these groups at 870yds again Tom..?

 

[tom]

Are these groups at 870yds again Tom..?

871 yes, don't forget about that extra yard! Lol

Tom

 

[savageshooter86]

871 yes, don't forget about that extra yard! Lol

Tom

That’s the key to successfull tuning isn’t it? That’s the secret

 

[tom]

That’s the key to successfull tuning isn’t it? That’s the secret

Yes, 870 just doesn't show the small changes like 871!

Tom

 

[No i deer]

Ah i forgot it was 871yds..
Awesome test groups..
I like following your testing
Very very consistant..!!

 

[kev77]

initial powder choices were H4350, RL16, and Rl23. We ran some intial pressure ladders with H4350 and RL23. The Rl23 did not pressure out, but more than 63 grains was going to need a slower pour or a drop tube. H4350 hit the edge of pressure with a light ejector outline, but no shine or swipe.View attachment 1203550 View attachment 1203551

How is the barrel on this gun 30"? 1-10twist? Thanks

 

[JeffT]

I’ve got everything but dies. Can’t wait to fire it up

 

[tom]

Here's a few from this weekend at the 1,000 yard match at deep creek. My Friday morning ladder told me to lower the charge 1/10th to 58.8.



Only to be outdone by @GlennK 6mm, although that is one of the best 6s we've ever seen.

Tom

 

[INTJ]

Well, I ordered my 300 SAUM Imp reamer today. There isn't a lot of future in my too-tight 300 WSM reamer........

 

[GlennK]

Here's a few from this weekend at the 1,000 yard match at deep creek. My Friday morning ladder told me to lower the charge 1/10th to 58.8.

View attachment 1260881View attachment 1260882View attachment 1260883

Only to be outdone by @GlennK 6mm, although that is one of the best 6s we've ever seen.

Tom

I was out agg'd by you. Even on the good day. This 30 is the real deal. First year and it is kicking ass.

 

[Mudpro]

Anyone running this cartridge annealing on an Amp and what Amp bushing is needed for it?

Thanks

 

[Louisb]

Anyone running this cartridge annealing on an Amp and what Amp bushing is needed for it?

Thanks

I use Pilot #20. Ran the Aztec analysis and result was 0164. Am using ADG brass.

 

[newbieshooter]

I use Pilot #20. Ran the Aztec analysis and result was 0164. Am using ADG brass.

Just wondering what Aztec analyze code did you use? 020A, 020B, 020C or 020D ??

 

[Louisb]

Just wondering what Aztec analyze code did you use? 020A, 020B, 020C or 020D ??

20A

 

[newbieshooter]

20A

Thanks!

 

[Louisb]

20A

Correction 20C