With 55 grainers I run 26.6 grains of 748 (for my 20in with Wylde chamber) for 3013fps and 26.3 grains of 748 (for my 18in with 5.56 chamber) for 2724fps. These loads are tailored for each weapon and are safe in my weapons with my components.
I stick to OAL including the tip. Mags don't care if it is plastic or not, got to fit.
Always error on the side of safety,
OSOK
|