Virgin Peterson Brass

[wind gypsy]

The way I see it that extra 100 fps is free velocity. As the Peterson is more stoutly constructed than the Nosler the same powder charge equals more

It's free pressure which the stouter brass might hold up to better. It's also a good way to get sticky extraction on future firings if you hammer all the brass with high pressure firings right off the bat.

 

[kevingm1987]

i’m using Peterson brass in my 65 PRC, I have never used it in any cartridge. This is my first go around with it. First 50 rounds.

Running what I think is a really modest charge of 52gr of 4831sc with a 130TMK loaded to book. If i am shoot a string moderately fast I will get ejector marks with no bolt lift on shots 4-5. If I shoot real slow no issue. Velocity is like 2680fps with a 22” OEM tikka barrel. Have a hard time thinking I’m on the “edge”

I’ve ran full house loads of H1000 behind 162eldx’s in Hornady brass for 5 firings in 7rem mag and never had any pressure signs even shooting in warmer weather and quick strings.

I’m still learning, but this is what I know so far.

You FPS must be off. No way its only going 2680FPS with 52gns of 4831sc. Did you mean 2980? 2880?

I can get 2710fps with my 6.5cm in 20" barrel shooting Berger 130gr behind 42.2gns of H4350.

 

[NWBLKTAIL]

You FPS must be off. No way its only going 2680FPS with 52gns of 4831sc. Did you mean 2980? 2880?

I can get 2710fps with my 6.5cm in 20" barrel shooting Berger 130gr behind 42.2gns of H4350.

Nope that is exactly what it was, I had other rifles with me with known loads that hit exactly where they should be recorded via Garmin.

I have 20 rounds left of this batch of virgin brass, I will record those to verify.


Side note:

Ran up to a spot last night to shoot some more rounds to get through the rest of this virgin brass.

Shot 20rounds, all them looked good on the head stamp.

Edit:
Yes my 6.5CM 24”-22” both hit over 2800 with 42.5-43 of H4350 and 130TMK

This is also a new barrel, I will see where I am at in 200 rounds

 

[Fireflyfishing]

It's free pressure which the stouter brass might hold up to better. It's also a good way to get sticky extraction on future firings if you hammer all the brass with high pressure firings right off the bat.

I’ll add, possibly blowing out your primer pockets faster…costing more money replacing top tier brass.

 

[S.Clancy]

My experience with Peterson brass is it has less case capacity than others. I'm a grain or so under all book maxes and right at or under book max velocity. I don't push above book max velocity.

 

[NWBLKTAIL]

You FPS must be off. No way its only going 2680FPS with 52gns of 4831sc. Did you mean 2980? 2880?

I can get 2710fps with my 6.5cm in 20" barrel shooting Berger 130gr behind 42.2gns of H4350.

Just shot these, 52gr 4831sc

 

[41rem]

My experience with Peterson brass is it has less case capacity than others. I'm a grain or so under all book maxes and right at or under book max velocity. I don't push above book max velocity.

The load I'm running is 2 full grains below book max. I get 3250 in Nosler brass & 3350 in Peterson