December project the .458 socom

[kweidner]

I have recently acquired a .458 socom RRA. First let me say it's almost as fun to shoot as my 50BMG. I have a 45 cal suppressor and adapter to 5/8-32 and plan on making a subsonic thumper. I just ordered the NOE 480 hp based on a few discussions I came up with the search function. Anyone run this one subsonic? I will be HT coating it. I wanted the plain base. Also what are you guys using for expanding that neck?

Advice appreciated as this is new territory for me with the .458. I have IMR 4198, Lovex DO63-02, 4227, trailboss, H335, unique, amongst many others. Based on my research it seems the 300 BO and this one like the same powders thus the ones mentioned.

Thanks,

Ken

[ioon44]

One of my friends is shooting a 405 gr from Magma molds with Hi-Tek Bronze 500 subsonic using Reloder 7 powder. I think he is using a Lee neck expander for now.

[reed1911]

RL7 is also what I recommend.

[kweidner]

I got mold yesterday. If i like it I may get a set for the bullet master. Hand casting again. wow. Eric makes a sweet HP conversion to run on bullet masters. I have found an INCREDIBLE load super with DO63-02. It sends the 325 ftx into less than MOA at 1864 fps ave and a 19fps ES. Now to the cast subs. Sure it will take a bit longer. Thanks for the info guys. Keep it coming.