Sorry but do you shoot that load out of 300 rum and what diameter bullet are u using
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300 rum loads?
- Thread starter MadMike
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Sorry but do you shoot that load out of 300 rum and what diameter bullet are u using
I actually used ml of water and weighed each case. Same result just easier to do.
Yep shoot it out of my 300 RUM. I have a tight neck chamber so I have to turn necks, (not doing that again) it is a pain in the butt. The bullets are .308" diameter Sierra Matchkings in 240 grains. Sierra says you need a 9 twist, but if you push them past 2900fps they stabilize just fine out of a 10 twist.
Reuben
Neck chamber? And I was looking at load data and couldnt find a load like you have none of them shoot that fast
Neck chamber? And I could not find a load for 240 that would shoot that fast
My chamber is cut to .338" in the neck portion. Minumum sammi spec is .344"
Here's some supplemental data for the 240 SMK.
Reubenhttp://www.longrangehunting.com/forums/f28/300-rum-240-smk-us869-initial-results-16964/index3.html
Reuben
OK I get it now... Will my factory rifle be different with this load compared to yours.. And have you ever used the smk's for hunting
With your factory barrel your OAL will be a lot longer than mine to reach the lands. They have a lot of freebore from the factory to help with pressure spikes. I shot a caribou with the 240 SMK's this December and was pleased with the performance, DRT. I would look into using R33 or US869 with the heavies in your factory barrel. The SMK's aren't really jump sensitive, so even if you can't reach the lands and want to mag feed you should find a powder charge that will be accurate in your rifle.
Reuben
TitaniousReaper
Member
What is your barrel length? Please tell me it is 26", this will help me find a starting load for my rum using 230's
TitaniousReaper
Member
Same here, can't find exactly what I'm looking for, even a starting load...Now I'm looking for 240 smk loads been looking for awhile!
