How fast do you think a Crosman 10.5 grain .177 can go?

How fast do you think a Crosman 10.5 grain .177 pellet can be driven?

Response to How fast do you think a Crosman 10.5 grain .177 pellet can be driven?

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2900psi with a slightly choked stem…… 1300fps with the 10.5 shot 10x pressure at 2750psi and 1284fps with a 10 shot average of 1291fps

Pulled choke, pressure at 2750psi shot 5x 10.5s for 1398, 1391, 1368, 1373, 1350 ave 1376fps
pressure at 2450psi 2x 10.5 = 21 grains for 1081fps
pressure 2400psi 3x 10.5 = 31.5 grains for 921fps

pressure at 2330psi Daisy Maxspeed at 7.0 grains? went 1473fps
pressure at 2290psi 2x D/Max 14 grains went 1183fps
pressure at 2250psi 3x D/Max 21 grains went 1033fps

pressure at 2200psi 1x Crosman 10.5 gr went 1297fps

Put choke back in and 2150psi 10.5 went 1200fps
pressure at 2130psi D/Max 7.0 grain went 1311fps

Refill to 2900psi pulled choke and 10.5 went…………. 1419fps!!!!!!
pressure down 2870psi D/Max went 1577fps…………….. 1577fps!!!!!!

rifle is my home built Vulture Condor style with an 800cc airtank, 5//16″ stem with a bore of 0.220″ and .177 cal Crosman barrel.

Offhand at 40 yards got 3 into 1.5″ has potential

Walter…..