7 Saum powder selection

[Krumfola]

At 180 rounds on the barrel and increased to 65gr H1000, 2790fps.

 

[7SAUM-J]

Is anyone getting results with N565, Retumbo, N570 in shorter barrels with 180’s?
I’ve got a 20” 7 SAUM shooting a 180 ELDM at 2805 with 63.5g of H1000. This was a middle charge load that was the most accurate. Would love to see if any of the above listed powders might gain a little more speed.

 

[ike22]

Is anyone getting results with N565, Retumbo, N570 in shorter barrels with 180’s?
I’ve got a 20” 7 SAUM shooting a 180 ELDM at 2805 with 63.5g of H1000. This was a middle charge load that was the most accurate. Would love to see if any of the above listed powders might gain a little more speed.

I have a 20” 7 saum in a medium action. I’m shooting 180 Berger hybirds at 2880 with 65 grains of 565.

 

[Levi8599]

20” saum shooting 180s 2835 with 61gr n560

 

[7SAUM-J]

I have a 20” 7 saum in a medium action. I’m shooting 180 Berger hybirds at 2880 with 65 grains of 565.

Thanks. I’ve got a good N560 and 175 eldx load. I’d like to try N565. I’ve been happy with all of the that line of V powders.

 

[7SAUM-J]

20” saum shooting 180s 2835 with 61gr n560

I haven’t played with the 180’s and n560 yet but I should probably try. Magnum primers or standard large? I’m using ADG brass and WLR.

 

[wind gypsy]

Is anyone getting results with N565, Retumbo, N570 in shorter barrels with 180’s?
I’ve got a 20” 7 SAUM shooting a 180 ELDM at 2805 with 63.5g of H1000. This was a middle charge load that was the most accurate. Would love to see if any of the above listed powders might gain a little more speed.

2805+ with a 20" seems like pretty good speed to me. I woudn't expect much faster unless you're going RL26 or maybe n560.

A few 64ish gr h1000 firings behind 175 ELDs = clickers on ADG brass for me in a 0.200" freebore chamber.

 

[7SAUM-J]

2805+ with a 20" seems like pretty good speed to me. I woudn't expect much faster unless you're going RL26 or maybe n560.

A few 64ish gr h1000 firings behind 175 ELDs = clickers on ADG brass for me in a 0.200" freebore chamber.

I am happy with the speed for sure. I've played the clicker game and swelling at the .200 line for a while and I'm NOT interested in flirting that line with my next batch of ADG brass. The accuracy H1000 is giving me is excellent with 63 through 64 grains so I'm not tying to get wild here.

Thanks for your response!

 

[wind gypsy]

I've heard folks mentioning mixed results with more recent ADG 7 SAUM brass lots. The stuff I have is from the first run that ADG made still. I had good results with norma SAUM brass necked to 6.5 in the past. I think i'd rather deal with loose primer pockets in 6 firings than sticky bolt lift. Anyone else come to similar conclusions?

 

[Krumfola]

I’ve got around 20 loose pockets after 2 firings which is a bit surprising given how much everyone talks about this brass. They’re not too loose to use but noticeably looser than the rest.

The first firing was 62gr H1000 with a 162ELDM for fire forming. The highest was 65gr which is still 2gr lower than max.

 

[wind gypsy]

I’ve got around 20 loose pockets after 2 firings which is a bit surprising given how much everyone talks about this brass. They’re not too loose to use but noticeably looser than the rest.

The first firing was 62gr H1000 with a 162ELDM for fire forming. The highest was 65gr which is still 2gr lower than max.

That’s with ADG? I feel like Hodgdons h1000 data is pretty hot. R-P brass probably had a bit more capacity iirc.

 

[streamerfish]

I’ve got around 20 loose pockets after 2 firings which is a bit surprising given how much everyone talks about this brass. They’re not too loose to use but noticeably looser than the rest.

The first firing was 62gr H1000 with a 162ELDM for fire forming. The highest was 65gr which is still 2gr lower than max.

Whats your coal?

H1000 in a 7SAUM is already riding that thin reloading line. Its pretty slow for case capacity/size, your probably pretty stuffed to fit that much powder, compressed loads can give weird pressure. Loose primer pockets after 2 firings I would consider to be a sign of over pressure.

People need to realize or remember that ADG brass is thicker then most other types of brass. Which in theory can make it longer lasting. But also potentially lower capacity. Especially compared to remington brass which is generally considered a thinner/high capacity case.

But, it also can mean that you run up to pressure faster/have a lower case capacity. The Hodgen data online is has H1000 in a compressed load, but with Remington brass, which is pretty thin in comparison.

Nosler doesn't list anything slower burning then RL23 range, and thats a tightly compressed load in Nosler brass. They don't have anything running above 62 grains.

Basically....handle with care.