300 WM heavy bullet powder

[jkrueger]

I almost have my 300 win mag finished and will be using it to shoot heavies (208-230 grain) it has a 30" tube and is throated long to seat these big long bullets out there, its a single shot so OAL can be as far as it needs to be
I have some 4831sc to play with from my 260 but am thinking i should try some slower powders also. I want to grab some H1000 and was considering some Retumbo but dont know if that will be too slow for the WM
anyone have any experience or suggestions?

 

[clambdin]

Ramshot magnum or H1000 are my go to powders for this application with that long barrel Retumbo could work also !

 

[Grumulkin]

I use H4831SC with 200 grain bullets with excellent results so that's the first powder I'd try. Retumbo and H1000 should also be OK but I don't know if they're any better than H4831SC.

 

[Broz]

H-1000

 

[reeldawg]

H1000 or H4831SC

 

[RTK]

Try imr7828 too

 

[Lefty7mmstw]

rl25 will do 2800 fps in a 300 win with a 220; so will 7828

I'd guess h1000 and retumbo would do well too. My brother had a 300win in a #1 doing 3100 fps with a 200 speer and retumbo and we were prarie dog hunting with it. If they were above the mound I'd take 'em with my Striker in 22-250; if they were in the mound I'd call in the artillery and he'd blow 'em out of the hole with the 300win and 200 speers.

 

[diderr]

h4831sc. I load it in all my magnums. It doesn't take long to find an accurate load.

 

[carpetman2]

I get 2920 with berger 210's using 73.1 gr. of RL22 out of a 26" tube.

 

[diderr]

I get 2920 with berger 210's using 73.1 gr. of RL22 out of a 26" tube.

I used 22 when I was developing the first loads out of my m77 300wm. I decided to stray away from it because it tends to be temperature sensitive and different lots can vary +/- 10 or more fps. I also couldn't get it to shoot good enough, so I switched to H4831sc. I'm still trying to find the sweet load for this gun, but this Ruger is just stubborn.

 

[carpetman2]

That has been my experience also with RL22, but it has also been true with H1000. I had developed a very accurate and fast load with the H1000 and needed a new can of powder, so I ran down to the sporting shop I had picked it up at and LOL all the other cans were of a different Lot. Not to worry, there is good consistancy with Hodgens. Wrong! I never could get the accuracy out of that next can and I lost 90 FPS from what I was getting from the first Lot. I am begenning to wonder if they are all susceptable to it from time to time.

 

[diderr]

That has been my experience also with RL22, but it has also been true with H1000. I had developed a very accurate and fast load with the H1000 and needed a new can of powder, so I ran down to the sporting shop I had picked it up at and LOL all the other cans were of a different Lot. Not to worry, there is good consistancy with Hodgens. Wrong! I never could get the accuracy out of that next can and I lost 90 FPS from what I was getting from the first Lot. I am begenning to wonder if they are all susceptable to it from time to time.

I was lucky the last time I bought powder and they were still selling the same lot number at the store in which I bought a pound 4 months prior. I might just get an 8 pounder next time and not have to worry about it.

 

[carpetman2]

That's what I just did last week. But with the H1000 I was just trying it. That first pound was really great. The 2nd one was real disappointing.