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Your own risk: 55gr Sierra Game King HPBT on top of 2.9 to 3.2 grains of True Blue depending on temp and altitude, COAL 1.590. True Blue 3.0 grains gives me 1035fps at my location, sea level with a temp of 80+ degrees.

This is a very small load of powder vs case volume. Powder can pool and you end up with varied results including but not limited to powder burn fluctuations which will affect velocities. I used Wolf small pistol primers but just about any small pistol or rifle primer will work. Hardened primers (CCI 41) or the like may result in misfires.

MAKE SURE YOU UNDERSTAND THIS TABLE BEFORE YOU UTILIZE IT. PRESSURES ARE JUST ESTIMATES BASED ON A MATHEMATICAL PROGRESSION AND FORMULA DEVELOPED BY ME AND ARE NOT ACTUAL MEASURED PRESSURES.

THIS IS FOR A SBR AND CAN BE ADJUSTED FOR USE WITH THE PS90 AND FIVESEVEN HOWEVER, I WOULD RECOMMEND YOU DO NEITHER AS NEITHER THE FIVESEVEN OR PS90 WERE MEANT TO BE SHOT SUPPRESSED.

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