Hello. It is my understanding that the Winchester USA line of JHP's are the Silvertips, but without the e-nickle finish. I've not checked the USA JHP's in the 147-gr. weight, but here is the average velocity (10 shots) when 147-gr. Silvertips were fired from a Browning Hi Power approx. 10' from the screens:
Average Velocity: 969 ft/sec
Extreme Spread: 39
Std. Deviation: 15
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This 147-gr. STHP was recovered from super-saturated newsprint that had soaked for 24 hours and drained 30 mins before shooting. The expanded bullet measured 0.64 x 0.61 x 0.42 inches tall. Virtually no weight was lost. Expansion was quite consistent in wet pack, but no so consistent when fired into water. Sometimes expansion would occur; other times, no.
Best.
Average Velocity: 969 ft/sec
Extreme Spread: 39
Std. Deviation: 15
This 147-gr. STHP was recovered from super-saturated newsprint that had soaked for 24 hours and drained 30 mins before shooting. The expanded bullet measured 0.64 x 0.61 x 0.42 inches tall. Virtually no weight was lost. Expansion was quite consistent in wet pack, but no so consistent when fired into water. Sometimes expansion would occur; other times, no.
Best.
