338 Norma magnum with Berger 250 elites or hammer hunter 260s?

Jakeweb09

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Feb 8, 2020
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421
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Enumclaw washington
I’m new to the 338 world and looking for powder recommendations on the lower weight class bullets. H1000 seems standard but also impossible to get my hands on. I’ve read n560 but would rather stay away for VV as it gets pretty expensive with these large cases!
 

Rhovee

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Jun 29, 2017
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I have shot both. H1000 with 260’s works good. Same with RL26. You can get away with H4831sc or RL23 with 250’s. Both are great bullets.
 

Jakeweb09

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Feb 8, 2020
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421
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Enumclaw washington
Figuring I’ll shoot steel with the Berger’s and elk with the hammers. I have a decent amount of rl26 but like that in a couple other guns of mine and don’t want to burn through it.
 

codyadams

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Jan 7, 2015
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Southwest Wyoming
Pretty much any powder for these big boomers is gonna be either hard to find/expensive, or both. Retumbo, rl26, rl33, h1000, vv n560, 565 and 570, and so on, it is kind of what you sign up for when you build one. I use VV N570 with 270 grain bullets.

However, Ramshot Magnum is a powder often overlooked by people that seems to do well, velocity similar to H1000, is accurate, and is what Jimmie Sloan originally used in the .338 NM's. I believe in my testing with 300 grain pills, there is still plenty of room for more powder and 250 grain pills. It is a ball powder and sensitive to temp change, but if you can't find / won't spend the money for the other good powders, that's what you have left
 

mdvctry

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Mar 24, 2012
Messages
51
Pretty much any powder for these big boomers is gonna be either hard to find/expensive, or both. Retumbo, rl26, rl33, h1000, vv n560, 565 and 570, and so on, it is kind of what you sign up for when you build one. I use VV N570 with 270 grain bullets.

However, Ramshot Magnum is a powder often overlooked by people that seems to do well, velocity similar to H1000, is accurate, and is what Jimmie Sloan originally used in the .338 NM's. I believe in my testing with 300 grain pills, there is still plenty of room for more powder and 250 grain pills. It is a ball powder and sensitive to temp change, but if you can't find / won't spend the money for the other good powders, that's what you have left
@codyadams do you have any start point loads for 338 Norma with either Ramshot Magnum or LRT? I have 250gr or 300gr Nosler ABLR bullets? I have Peterson brass and both LRT and Magnum powders, 26" Barrett MRAD
 

codyadams

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Jan 7, 2015
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3,241
Location
Southwest Wyoming
@codyadams do you have any start point loads for 338 Norma with either Ramshot Magnum or LRT? I have 250gr or 300gr Nosler ABLR bullets? I have Peterson brass and both LRT and Magnum powders, 26" Barrett MRAD
Here is what I got when testing. 300 grain HBN coated Berger. The rest of the details are at the top of the chart. Never saw pressure signs, however I believe it was at or over CIP max pressure with 94 grains, maybe even 93 grains. This is out of a 28" barrel. If I was gonna stick with this powder, I would have loaded in the 89-90 grain range, a nice flat spot there.
20201129_224833.jpg
 

mdvctry

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Joined
Mar 24, 2012
Messages
51
Here is what I got when testing. 300 grain HBN coated Berger. The rest of the details are at the top of the chart. Never saw pressure signs, however I believe it was at or over CIP max pressure with 94 grains, maybe even 93 grains. This is out of a 28" barrel. If I was gonna stick with this powder, I would have loaded in the 89-90 grain range, a nice flat spot there. View attachment 228959
Thank you!
 

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