gbw
Member
I wanted some 9mm /125 RNL, and I had Win. AutoComp on hand, a new powder to me.
Loaded 4.6 gr. and 4.8 gr, which Hodgdon says is max., giving 1100+ fps. This surprised me since AutoComp shows around Unique or HS-6 on the burn rate charts, yet the 4.8 gr. max. charge is far smaller than for Unique or HS-6.
Both loads felt very light in a BHP. Confirmed on my somewhat suspect chrono, they showed less than 775 fps, not 1100. Hardly a 'max' load for 9mm.
Anyone else used AutoComp with 9mm lead? (I re-checked everything & broke down a couple of unfired cartridges - 4.8 gr.)
Loaded 4.6 gr. and 4.8 gr, which Hodgdon says is max., giving 1100+ fps. This surprised me since AutoComp shows around Unique or HS-6 on the burn rate charts, yet the 4.8 gr. max. charge is far smaller than for Unique or HS-6.
Both loads felt very light in a BHP. Confirmed on my somewhat suspect chrono, they showed less than 775 fps, not 1100. Hardly a 'max' load for 9mm.
Anyone else used AutoComp with 9mm lead? (I re-checked everything & broke down a couple of unfired cartridges - 4.8 gr.)