Not impressed with ADG brass

[Hugger-4641]

I loaded three new Peterson cases with 90 gr of H1000 and 300 Bergers, my standard load for my Edge. Three shots had these velocities:
2886
2881
2891

The ADG with the same load (new cases) varied from 2840 to 2860 +/-

We're all conditions equall between these two samples?

Eg.
Was the rifle already fouled and warm for one group or was one of those from each group a true cold bore shot?

Was temp, humidity, etc the same for both groups?

 

[skipglo]

The only reason I am getting rid of the Nosler is because they are developing case head separation marks (I set the shoulder back 2 thou, so this gives you an idea of how many times they have been fired).

My guess is ADG cases are thinner in all dimensions, thus the lower velocity and higher pressure. Be interesting to see what the Peterson stuff does.

My Lapua brass (.338 lm) was showing the same case head seperation marks on the second loading....and experienced two case head seperations...tossed it all...cost was $5.75 a case

 

[LRNut]

We're all conditions equall between these two samples?

Eg.
Was the rifle already fouled and warm for one group or was one of those from each group a true cold bore shot?

Was temp, humidity, etc the same for both groups?

Seriously? Cold bore for each. In fact, the ADG stuff was mostly shot at my CO place where it is much colder than AZ, but then again, my shooting postions is a 10 foot walk outside from my loading room.

 

[LRNut]

My Lapua brass (.338 lm) was showing the same case head seperation marks on the second loading....and experienced two case head seperations...tossed it all...cost was $5.75 a case

Really? I was slow to jump on the Lapua bandwagon but I love Lapua for my custom 338LM. Primer pockets stay super tight and my SDs are the best of any rifle I own.

 

[Hugger-4641]

Seriously? Cold bore for each. In fact, the ADG stuff was mostly shot at my CO place where it is much colder than AZ, but then again, my shooting postions is a 10 foot walk outside from my loading room.

Yes. I can't be the only one whose noticed a tendency for the ES to smaller if you take out the cold bore shot. In your very small sample size, if you fired a cold bore shot with the Adg sample and not with the other one then your comparison is not valid.

 

[kfreeze]

I wasn't impressed with their 7 rum brass either. Got the shiny cirlce from the ejector at starting loads. And case head expansion well before book max. Soft ultra mag brass is a no go for me.

 

[can1010]

I loaded three new Peterson cases with 90 gr of H1000 and 300 Bergers, my standard load for my Edge. Three shots had these velocities:
2886
2881
2891

The ADG with the same load (new cases) varied from 2840 to 2860 +/- and had stiff bolt lift.

90gr H1000 300 hybrid is definitely the gold standard for the edge. the consistency for new brass is impressive don't usually see that. hope it holds on the second and third firings.

 

[Taylorbok]

I've had good luck with ADG brass for 300 RUM, 375 RUM and 30SM.

I haven't compared velocity to other brands but it holds up well.

 

[LRNut]

Yes. I can't be the only one whose noticed a tendency for the ES to smaller if you take out the cold bore shot. In your very small sample size, if you fired a cold bore shot with the Adg sample and not with the other one then your comparison is not valid.

They were both 3 shot groups; ADG had multiple ones over multiple days. Why on earth do I want to use brass that requires more powder to get the same velocity with higher pressure to boot?

 

[LRNut]

90gr H1000 300 hybrid is definitely the gold standard for the edge. the consistency for new brass is impressive don't usually see that. hope it holds on the second and third firings.

I am going to load these again along with three more new cases. Will keep you posted.

 

[Taylorbok]

I am going to load these again along with three more new cases. Will keep you posted.

You could be losing some velocity to fire forming. I'm assuming you are pushing back the shoulder minimally when resizing?

 

[LRNut]

You could be losing some velocity to fire forming. I'm assuming you are pushing back the shoulder minimally when resizing?

I set back 2 thou. I was actually quite surprised the velocity was that high from the new Peterson cases - they sure were not with the ADG.