Powder selection/ availability for 7mm and 338lm

[Matthew488]

I've been using Reloader 22 in my 308 Baer (improved 300wby) but have now added a 7mm Rem Mag and 338lm to the mix. Retumbo and it seems even H1000 are not available. What powders that are still available have you guys had good luck with? If there's one that would work for more than one rifle that would be cool, if not oh well. Lol
Thanks in advance for any input.

 

[Steel head]

IMR7977 is very similar to H1000.
R26 popped up recently and you still might be able to find some.

 

[Matthew488]

Dang, I'm not even finding IMR7977, R23 or R26 in stock anywhere.

 

[clcustom1911]

Ramshot Magnum, Accurate Magpro, Reloder 33, Reloder 23, Retumbo, VV N560 and 570.

ALSO

WC 857 ...... I've gone through a hair less than 8 pounds of it in my 7mm RemMag with 139-183g projectiles. It's a ball powder and appears to be akin to Ramshot Magnum, H1000, Reloder 25 burn speed. I like it ALOT and will be buying more soon.

 

[OLD308]

4350 for the 7mm Rem Mag
VV N560, N565, N570 are the only temp stable powders I've found readily available. Prior to that H1000 Retumbo

 

[Steel head]

It’s tough right now for magnum powders.

 

[Matthew488]

I'm discovering that. I'll see if I can find some of the V V powders

 

[Alabusa]

I don't load for .338 Lapua but do load for 7mag. I use IMR4831 with very good results and it is fairly easy to find.

 

[titandriver]

Just saw 4 -8lbers of H1000 at our LGS today - $230 per 8lb. keg! Took my breath away!

 

[Matthew488]

Just saw 4 -8lbers of H1000 at our LGS today - $230 per 8lb. keg! Took my breath away!

Nice find!

 

[ShootnFool8]

Ramshot Magnum, and Ramshot LRT

 

[Huskydriver]

H4831 or ,4831sc is my next fav powderv going down the burn chart from retumbo and h1000. it will be a faster burning than h1000 but slower than 4350

 

[Matthew488]

Ramshot Magnum, and Ramshot LRT

How are these for temp stability? Prices look good on them.

 

[ShootnFool8]

How are these for temp stability? Prices look good on them.

Ramshot Magnum not bad at all, very consistent. Shot it from 81° to 26°. As for the LRT. Still doing load work up. But seems to be good too. Haven't shot enough to really say. But, does seem promising.

 

[clcustom1911]

How are these for temp stability? Prices look good on them.

For my experience with Magnum.... it's about 1 to 1.2 fps per degree... maybe a hair more, but it's easily trackable if you log your velocities/temps.

 

[Matthew488]

Got 8lbs each of RL25, H4350, Ramshot LRT and VV20n29 ordered up.