ADG 300 wsm brass testing

[Alex Wheeler]

Saami minimum is fine with the saum and wsm, not the prc. So far the prc is the only one you cant make a die for that works. They just made the base too small on the prc chamber. Jgs sells my prc reamers with the corrected base diameter.

 

[762 ULTRAMAGA]

Saami minimum is fine with the saum and wsm, not the prc. So far the prc is the only one you cant make a die for that works. They just made the base too small on the prc chamber. Jgs sells my prc reamers with the corrected base diameter.

Do you feel that .015 over saami base diameter is enough or do you recommend going closer to .003?

 

[rhovee]

There is .005 clearance from Min SAAMI chamber and the case head of .5515 of ADG. Going off memory but the 300 wsm min SAAMI should be .556ish.

 

[whatwind?]

here is a "standard" print from JGS...7/300wsm...just to show dimensions of body and also Steve Blair's 300wsm print that he has shared on here a couple times....both .5563

only piece of virgin wsm bras i have is bertram and it is also .5515

.016 body taper is way too much, shoulder should be .545??? you know you want to

 

[rhovee]

I am actually working on a 300 wsm improved for Sherman. Shoulder is .020 forward and .007 body taper with 40 degree shoulder.

 

[Willow]

I am actually working on a 300 wsm improved for Sherman. Shoulder is .020 forward and .007 body taper with 40 degree shoulder.

How is that working out in testing so far? I'd actually like to see the neck lengthened by .020, and blown out to 40 with less taper, but I'm a fan of longer necks for bullet seating flexibility.

 

[762 ULTRAMAGA]

Funny
I'm actually building a 7-300 wsm improved with a 45 degree shoulder

 

[Bigd7378]

that's exactly what i have a 7-300 wsm improved with a 45 degree shoulder

 

[rhovee]

Sherman’s design has a .342 neck. So the shoulder is .020 forward with .007 body taper and 40 degrees. He has custom dies already made so pretty easy on that end. He has 7mm made up already as well. I haven’t shot the 7mm version. Case capacity is about 84 H20.

With H1000, and N565 with 215 Berger’s and CCI 250’s. Accuracy is right at 2900 with Winchester brass. Took it to 2980 with no pressure. The nice thing about this case if you can run some slower powders.

 

[762 ULTRAMAGA]

that's exactly what i have a 7-300 wsm improved with a 45 degree shoulder

That's awesome man
How are you liking it so far?
I'm curious about the case capacity and velocity.
Mine will be an 18" barrel for a suppressed elk rifle.
I see you went with the .242 neck length, my reamer will maintain the 300 wsm length so capacity will be less than yours

 

[6bra1k]

Who are some of the main retailers for ADG?

the site lists retailers, or email and ask

 

[6bra1k]

I have 6.5 SAUM brass from ADG and it is dimensionally excellent just like their 300 Norma and 300 PRC brass.

Lapua is tough proven brass but I have had decent variances between lots in the past and slight manufacturing defects like bad burrs on the top side of flash holes. Still light years better than cheap brass tho.

I also have 6 Dasher cases from Alpha Munitions and it is very excellent brass as well. Alpha is an American company like ADG and since both make top of the line brass, if they make the cases I am looking for, I will definitely buy them before looking to Lapua.

Lapua used to be the only manufacturer of good brass available and pretty much had a monopoly on that part of the market. Now with ADG and Alpha proving they can match the quality and in some cases make it even better, the game has changed. Of course there is the American company Peterson brass as well but the first batch of brass I got from them had all kinds of QC and manufactured defect issues which put a bad taste in my mouth. Primer pockets so tight I couldn’t seat primers, cases developing cracks in the body and splitting open, dimensionally incorrect specs, etc. Not to say Peterson makes bad brass all the time, but I haven’t had a single issue with any ADG brass yet. Nothing but top notch quality in every single piece from ADG.

my lot of peterson was a disaster..never again

 

[762 ULTRAMAGA]

my lot of peterson was a disaster..never again

What was the issue with your Peterson brass, and what cartridge?

 

[6bra1k]

does the term pure krap cover it?? really poor quality. massive weight variation...NOT PREMIUM NOT TARGET QUALITY..maybe for a hunter, not for me.

 

[762 ULTRAMAGA]

does the term pure krap cover it?? really poor quality. massive weight variation...NOT PREMIUM NOT TARGET QUALITY..maybe for a hunter, not for me.

Weight variation is a poor metric for determining consistency, you need to measure capacity variation with fire formed cases.
What was poor quality? Were the cases out of spec, neck thickness variation, loose primer pockets?
I'm looking for solid info before buying

 

[FURMAN]

Weight variation is a poor metric for determining consistency, you need to measure capacity variation with fire formed cases.
What was poor quality? Were the cases out of spec, neck thickness variation, loose primer pockets?
I'm looking for solid info before buying

Some brass companies say this but I have measured hundreds of cases, many different cartridges, by weight and volume and in all cases(no pun intended) the weight variation is a direct correlation to case capacity. When the weights are consistent the volume is too. When the weights are not consistent neither is the volume.

 

[6bra1k]

Weight variation is a poor metric for determining consistency, you need to measure capacity variation with fire formed cases.
What was poor quality? Were the cases out of spec, neck thickness variation, loose primer pockets?
I'm looking for solid info before buying

you do what you want, i understand, but weight is a valid sort...it may not be perfect, but it is better than not weighing. yes i just won another match this weekend with WEIGHT SORTED 300 WSM BRASS.
since you do not agree with my process, my valuation of krap brass should not interest you either.

 

[762 ULTRAMAGA]

you do what you want, i understand, but weight is a valid sort...it may not be perfect, but it is better than not weighing. yes i just won another match this weekend with WEIGHT SORTED 300 WSM BRASS.
since you do not agree with my process, my valuation of krap brass should not interest you either.

Thanks I will continue to do what I want with your blessing..
I'm simply trying to get a clear picture of what you saw in your Peterson brass that lead you to conclude its "Pure Crap"
Sounds like you're basing that statement solely off of case weight variation, fair enough if you've also measured capacity but if you haven't then I have to say that your analysis is poor.

I'm using Peterson 30 Nosler brass and it's been excellent during load development/fireforming.
I did see case weight variation up to 6 grains, but my velocity spreads have been very good.
Edit: I just weighed 50 fired cases and every single one was between 291-293, I measured one case in 200 that was 295.8.
I'll measure capacity of fireformed cases to see if there's any need for concern.
I will say though the brass I have is solid stuff, I put ejector marks on a few test cases and primer pockets are still tight

 

[whatwind?]

ADG’s production schedule UPDATED 20DEC2021:


CURRENT– 300 PRC, we already sold out of brass, some ammunition is still in stock.


Then in order: 7 SAUM, 6.5 SAUM, 300 WSM

from unknown munition's website

vegas odds have it at Feb 29th to hit dealers....place your bets

 

[darkangel_r2]

you do what you want, i understand, but weight is a valid sort...it may not be perfect, but it is better than not weighing. yes i just won another match this weekend with WEIGHT SORTED 300 WSM BRASS.
since you do not agree with my process, my valuation of krap brass should not interest you either.

At what point in the reloading process did you weight sort?