No luck finding Retumbo; good powder for 24 in barrel 338 LAI

[Marine sniper]

Looking to shoot 300 grain bullets.

Thanks,
John

 

[Calvin45]

I don't load for the cartridge in question but see imr enduron 8133 compared to retumbo and absolutely love 8133 in my .300 win shooting 225 grain bullets. It's a tad slower burning than retumbo I think but also a bit denser so you can get more in the case. I'd recommend 8133.

 

[Marine sniper]

Which powder were you able to get more velocity with?

Thanks for the tip

 

[Calvin45]

Which powder were you able to get more velocity with?

Thanks for the tip

Have never tried retumbo so for myself I can't compare - for the same reason though, when I wanted to try retumbo I couldn't find it so I did some research and ended up "settling" with 8133. Not going to bother messing with anything else now, printed a legit one hole group at 100 yards with 225 eld m bullets (hbn treated, Winchester brass, fed 215m) with a compressed load of 79 grains, mv 2760 or so (3750 foot pounds) so not a barn burner but not sluggish, right what you'd expect from a .300 win mag.

 

[Marine sniper]

Cool, thanks.

 

[jimbires]

I shoot 300 gr Bergers in my 338 Lapua , it is NOT improved . I use RL33 .

 

[JMW67]

take a look at the ramshot lrt

 

[Marine sniper]

RE 33 is too slow for this rifles short barrel. I have tried it.

 

[North Idaho Hunter]

I would try h1000, or reloader 26. With your shorter barrel these may bode well with the barrel length.

If you cannot source those powders - try some Imr 7977.

 

[Marine sniper]

I plan on trying some H1000. I have 3 pounds in storage.

 

[Calvin45]

take a look at the ramshot lrt

Ooh yes I'm intrigued about that one as well but haven't seen it around yet. Isn't that a ball powder? I'm always a bit untrusting of ball powders

 

[JMW67]

Ooh yes I'm intrigued about that one as well but haven't seen it around yet. Isn't that a ball powder? I'm always a bit untrusting of ball powders

yes it is a ball powder I am trying it in a 6.5-280 ackley with 156 bergers and getting good velocity with it don't know much about the temp stability yet

 

[jimbires]

RE 33 is too slow for this rifles short barrel. I have tried it.

the one powder that makes more velocity than RL33 in the lapua shooting 300 gr bullets is , N570 . it's about 50 FPS more velocity .

 

[Calvin45]

I plan on trying some H1000. I have 3 pounds in storage.

Consistency trumps velocity and h1000 is consistent if anything. Supposed to be temp stable as well, more than retumbo. Haven't tested that for myself yet. Found out the hard way early in my loading career that Rl22 is about the most sensitive powder there is!