what powder for 300 RUM

[tjonh2001]

Nate at SSG is building me a new 300 rum. planning on shooting 210 bergers. i am looking for some loads. should i use retumbo or h-1000? the gun will be a 26inch ABS carbon fiber barrel in a 1-11 twist.

thanks in advance for any Help

TOBY

[nddodd]

I have, or should i say had (just sold it on this forum) an sfII and the gun absolutely loved 210 bergers and 93.5 gr of H-1000. I had them just off the lands i can look up the exact col if you would like. I used fed. gold medal match primers. I was getting in between 3105 and 3120 on a five shot string.

[tjonh2001]

3120 was this a mild load. I was hoping for alittle more velocity. What was your col and were you able to magazine feed them.

[nddodd]

The col was 3.818 and it was not what i would call a mild load i guess you would call it mid to hot it would leave just a small extractor mark on the case, no sticky bolt or anything like that, I tried to go hotter but the groups started to open up. As for it feeding in the magazine it would not. I hope this helps you.

Nathan

[trueblue]

tjohn2001,
H-1000 has been the go to powder for the 338 EDGE which is based on the 300 RUM case, so it should be a good choice to start with for your custom rifle. However, with a 26" barrel you might need to try a little faster powder also.

[Joel Russo]

Originally Posted by tjonh2001

Nate at SSG is building me a new 300 rum. planning on shooting 210 bergers. i am looking for some loads. should i use retumbo or h-1000? the gun will be a 26inch ABS carbon fiber barrel in a 1-11 twist.

thanks in advance for any Help

TOBY

You need to use what the rifle likes!

Don't get caught in using what you want.
I would try a few different powders, and use what will enable you to reach your targeted velocity with acceptable accuracy.

I have used RL25, Retumbo, H-1000, 7828, and a few others with excellent results in 26" barreled rifles.

[Coyboy]

Joel is right, you might have to see what the rifle likes. H1000 is a very good powder to start with, it's what I use in mine and it is a very accurate rifle. I have some pics of groups, gun and some load data on my site in the gallery page.