Peterson 6 Dasher Brass

[Ccrider]

You can say what you want about Peterson Brass, but you will be lowing if you say that they do not do an excellent job of packaging their brass-better than anyone else I have seen. Great start.

 

[Kratos]

Alpha does the same thing, although it’s starting to seem like the consensus is that their actual brass isn’t up to the highest standards.

 

[Ccrider]

Alpha does the same thing, although it’s starting to seem like the consensus is that their actual brass isn’t up to the highest standards.

The packaging is good enough to fool us novices into thinking it’s good. The proof will be in the pudding.

 

[Longrange57]

I have 100 Alpha cases with 3 firings and absolutely no issues! I will hardly ever buy anything other than Lapua for several calibers. At 8-10 firings we will see! With 105 Gungnir....very accurate!

 

[Mikemci]

When you start loading them, be sure that your primers seat below the case head. I had some of their brass that had shallow primer pockets and had to cut the pockets deeper.

 

[Ccrider]

When you start loading them, be sure that your primers seat below the case head. I had some of their brass that had shallow primer pockets and had to cut the pockets deeper.

Will do. Thanks.

 

[Ranger188]

I've found that problem with Alpha's other brass, shallow pockets.
Had to trim them all. Never with Peterson or Lapua.

 

[shoot4fun]

Just got my Peterson 6 Dasher brass.
@Ccrider have you had time to do any measuring?
The necks on the few I sampled came in .0138 to .014 but a few other numbers are concerning.
I'd like to hear what your sample measures to the datum and diameter just below the shoulder/body junction.

 

[Ccrider]

Just got my Peterson 6 Dasher brass.
@Ccrider have you had time to do any measuring?
The necks on the few I sampled came in .0138 to .014 but a few other numbers are concerning.
I'd like to hear what your sample measures to the datum and diameter just below the shoulder/body junction.

Have not checked. Will measure tonight and give some numbers.

 

[Stan Taylor]

You can measure it all you want you still have to fire it at least once then you're good to go I have no issues with my brass it's working great.

 

[Ccrider]

Have not checked. Will measure tonight and give some numbers.

I pulled 5 random pieces to measure.
.454 below the shoulder body junction for all five measured. OAL 1.533 for 4, one 1-5325.
Neck thickness .014 for 4. One .0139-.0140. Shoulder blow length was within .001 for all 5. Turn, fire and should be good to go.

Loaded round wit VT 103 prior to turning neck .2710.

 

[Stan Taylor]

Well I formed Peterson 6mm dasher brass, and started tuning for the upcoming GBA 600 yd. National's this weekend, and this is the node I think it likes, at about 2975 fps with the Barts 105 hammers and R15 powder.

 

[johara1]

Stan, you got a little vertical..... LMAO..... jim

 

[Stan Taylor]

Stan, you got a little vertical..... LMAO..... jim

Just a tad.
This one is a little better.

 

[dbduff]

What’s the range and temp? I just got done fire forming some Lapua brass for 6brdx and at 25 degrees re 15 was a good 50 FPS slower than same charge at 70 degrees. I’m preferring H4895.

 

[Stan Taylor]

I'm testing at a 100 yds at present and the temperature was right at 69 degrees.

 

[dbduff]

I'm testing at a 100 yds at present and the temperature was right at 69 degrees.

Am also fire forming the 6 dasher brass you helped me get from Graf and sons. Will let you know how that works. Thanks again.
D

 

[johara1]

Just a tad.
This one is a little better.

You are there bud.... jim

 

[benchrest]

The Peterson fire forms clean. Looks like good shoulders formed. My Lapua load is 32.8gr Varget, the Peterson on initial firing does best at 32.2gr. I’ll load again on formed brass to see if it changes any. It may fall on the 32.4gr. I didn’t chrono any yet. I probably will tomorrow. I’m curious on where the speed is.
Peterson on left, fired vs virgin. Lapua on right

*I ordered 8lb of imr 4166 to preserve my stash of Varget for my next barrel. Load testing for that tomorrow too.

 

[johara1]

The Peterson fire forms clean. Looks like good shoulders formed. My Lapua load is 32.8gr Varget, the Peterson on initial firing does best at 32.2gr. I’ll load again on formed brass to see if it changes any. It may fall on the 32.4gr. I didn’t chrono any yet. I probably will tomorrow. I’m curious on where the speed is.
Peterson on left, fired vs virgin. Lapua on right

*I ordered 8lb of imr 4166 to preserve my stash of Varget for my next barrel. Load testing for that tomorrow too.

I would have tried a pound first, It's too bulky for the Dasher I found. More so than H4350.... jim