7mm RUM and RL33

[its only light]

Hey guys. So I have a 7mm ultra mag barrel off a sendero coming. I'm wondering if anybody has tried running rl33 in this case with 180gr bullets? I have a few hundred 180gr lapua scenars to try out. I also have imr 7828ssc and h4831sc to try. Loads with any and all these powders would be greatly appreciated!

thanks in advance!

 

[nastynatesfish]

I use us869. Can find it a lot of places. I load a 130gr Sierra match king with 105gr seated at book. Shoots like a lazer

 

[its only light]

What kind of speeds are you getting with those light bullets? Hows the temp sensitivity with the us869? Its available everywhere around here unlike most powders. Never used it though.

was thinking rl33 should be good with the heavies.it makes a huge velocity difference in my 338 lapua.

 

[nastynatesfish]

I haven't ran them through a crony. The rifle I put together for my old boss going on a muleteer hunt in new Mexico. He has it off getting a break installed. It's what shot the best. I started the load in July here in as so I could tell about cold yet