I just got all stuff together for loading .223 on my single stage. . . . anyway. I loaded up about 100 rounds using my Hornady manual.
Using federal 55 grain bt-fmj's, 21.1 grains of H335, processed LC brass, and a magtec small rifle primer.
The Hornady manual has the BT-fmj's at col of 2.200" with a max powder of 23.2 grains with lowest recorded at 20.8 grains.
When I got home, I looked at my other manual. . .
My Lymann manual only has a 55 grain jacketed spt (off of a sierra bullet to be exact) with a OAl of 2.260", and a max looad of 27.0 grains with a sugg starting at 24.3 grains.. Other rounds (HPBT's, v-maxes ect) are set to 2.250" long.
These numbers don't even overlap. I know that manuals don't agree exactly, but this seems like a very wide margin.
Should I worry?
This is for an AR, if it matters.
Using federal 55 grain bt-fmj's, 21.1 grains of H335, processed LC brass, and a magtec small rifle primer.
The Hornady manual has the BT-fmj's at col of 2.200" with a max powder of 23.2 grains with lowest recorded at 20.8 grains.
When I got home, I looked at my other manual. . .
My Lymann manual only has a 55 grain jacketed spt (off of a sierra bullet to be exact) with a OAl of 2.260", and a max looad of 27.0 grains with a sugg starting at 24.3 grains.. Other rounds (HPBT's, v-maxes ect) are set to 2.250" long.
These numbers don't even overlap. I know that manuals don't agree exactly, but this seems like a very wide margin.
Should I worry?
This is for an AR, if it matters.