300 BLK Newbie - SLR 5" Subs
Posted: Thu Aug 11, 2022 4:35 pm
Hey all, newbie to the forum here from Alaska, also new to supressors and to the 300 BLK caliber. I've been handloading other calibers for years, just about ready to start slinging powder for this project. Just introducing myself and have a few questions of course
The pistol is a 5" SLR barrel 1:6 twist behind a Rugged Radiant 7.62 supressor.
For the short barrel specifically with Berrys plated 220 gr, I haven't been able to find much detail as far as subsonic loads - I have a number of load data manuals and starting points for Lil Gun, VV N110 and N120 (cannot find A1680 locally) but not sure what adjustments I should be looking at. Is it common to drop some weight in powder initially vs what we would be loading with 8-10" barrels?
For instance, my data notes 8-10 gr Lil Gun, 8-10 gr N110 and 9.5-10.5 gr N120. Do you short barrel guys start in those normal ranges?
I have access to CFE BLK powder also but the others should keep me busy for a while. Also have H110 which I run through 458 SOCOM loads.
And how important is it to ladder test without the supressor installed, vs installed?
But at least I finally found small rifle primers locally, that took a while..
Glad to be here!
The pistol is a 5" SLR barrel 1:6 twist behind a Rugged Radiant 7.62 supressor.
For the short barrel specifically with Berrys plated 220 gr, I haven't been able to find much detail as far as subsonic loads - I have a number of load data manuals and starting points for Lil Gun, VV N110 and N120 (cannot find A1680 locally) but not sure what adjustments I should be looking at. Is it common to drop some weight in powder initially vs what we would be loading with 8-10" barrels?
For instance, my data notes 8-10 gr Lil Gun, 8-10 gr N110 and 9.5-10.5 gr N120. Do you short barrel guys start in those normal ranges?
I have access to CFE BLK powder also but the others should keep me busy for a while. Also have H110 which I run through 458 SOCOM loads.
And how important is it to ladder test without the supressor installed, vs installed?
But at least I finally found small rifle primers locally, that took a while..
Glad to be here!