25 PRC

My BTD on adg brass, once fired, is 1.651. I trimmed the neck walls .148. I also ran the cutter back into the shoulder reducing some of the prior to necking down. I also annealed prior to necking down.

Far North Hunter said:

My 25-6.5 PRC built on a 7.5 twist is doing bugholes with VV 560. My next workup looking for more velocity will be using VV 565. View attachment 519906

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Barrel length? I would think N560 would be faster than N565.

Eman1982 said:

Barrel length? I would think N560 would be faster than N565.

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24" Bartlein #3b - 8twst

What dies do you guys run for this cartridge? Do you use a bushing FL die to resize with the appropriate bushing, and a 6.5 PRC seater with a .25 caliber stem? Or you hit custom dies?

B Jordan said:

View attachment 519915

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I just finished up testing with H1000 in the 25PRC. At .020 off 57.5 and 58 grains opened up. 56.5 and 57 almost over overlapped so I went with 57. I am switching to H1000 over N565. I was having to clean the barrel after 20-30 rounds due to groups opening up. In my experience with H1000 in a 300RUM I could go forever without having to clean and groups stayed the same.

C6 7T Barrel 21 5/8" suppressed
New ADG brass
BR-2 primers
Berger 135
.020 off lands, 2.380CBTO

56.5G 2950
57 2970
57.5 3000
58 3030 heavier bolt lift.

EDIT:
58 grains of N565 was averaging 2940
59 pressure

mullmann03 said:

I just finished up testing with H1000. At .020 off 57.5 and 58 grains opened up. 56.5 and 57 almost over overlapped so I went with 57. I am switching to H1000 over N565. I was having to clean the barrel after 20-30 rounds due to groups opening up. In my experience with H1000 in a 300RUM I could go forever without having to clean and groups stayed the same.

C6 7T Barrel 21 5/8" suppressed
New ADG brass
BR-2 primers
Berger 135
.020 off lands, 2.380CBTO

56.5G 2950
57 2970
57.5 3000
58 3030 heavier bolt lift.

Click to expand...

EDIT: Delete.

haisardao said:

What dies do you guys run for this cartridge? Do you use a bushing FL die to resize with the appropriate bushing, and a 6.5 PRC seater with a .25 caliber stem? Or you hit custom dies?

Click to expand...

Can't speak for 25 PRC, but I use Whidden FL bushing sizer w/ appropriate 6mm bushing along with their seater with the 105 hybrid seating stem. Seems to work fine other than crunching a few pieces of brass - always first new piece in session?

wasskeet said:

Can't speak for 25 PRC, but I use Whidden FL bushing sizer w/ appropriate 6mm bushing along with their seater with the 105 hybrid seating stem. Seems to work fine other than crunching a few pieces of brass - always first new piece in session?

Click to expand...

Thanks!

mullmann03 said:

I just finished up testing with H1000. At .020 off 57.5 and 58 grains opened up. 56.5 and 57 almost over overlapped so I went with 57. I am switching to H1000 over N565. I was having to clean the barrel after 20-30 rounds due to groups opening up. In my experience with H1000 in a 300RUM I could go forever without having to clean and groups stayed the same.

C6 7T Barrel 21 5/8" suppressed
New ADG brass
BR-2 primers
Berger 135
.020 off lands, 2.380CBTO

56.5G 2950
57 2970
57.5 3000
58 3030 heavier bolt lift.

Click to expand...

Those are great numbers, funny how case capacity works, that's where I found pressure with 6.5 PRC and 140 Bergers hybrids.

K.E.C. said:

I'm missing what caliber.
No way your only running 58gr of H-1000 in a 300RUM .
But it is only 21" barrel.

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No. I was saying I am switching my 25prc to H1000 due to N565 getting dirty quick. When I used H1000 in my RUM I never had issues with it getting dirty.

mullmann03 said:

I just finished up testing with H1000 in the 25PRC. At .020 off 57.5 and 58 grains opened up. 56.5 and 57 almost over overlapped so I went with 57. I am switching to H1000 over N565. I was having to clean the barrel after 20-30 rounds due to groups opening up. In my experience with H1000 in a 300RUM I could go forever without having to clean and groups stayed the same.

C6 7T Barrel 21 5/8" suppressed
New ADG brass
BR-2 primers
Berger 135
.020 off lands, 2.380CBTO

56.5G 2950
57 2970
57.5 3000
58 3030 heavier bolt lift.

Click to expand...

Barrel length?

Eman1982 said:

Barrel length?

Click to expand...

21 5/8"