Trying to get some 500 grain loads going...

[Rikky Lee]

... for the 458 SOCOM.

The inter-web is big on questions but very short on solutions for this one question.

So far I have the option of 21ish grains of 4198 or 17ish grains of H110 for the 500 grain Hornady RN. Someone suggested Trailboss but there may be a problem with case capacity.

Let's get the ball rolling on this one - I think the bolt gun may give higher velocities tho'.