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FPS Drop .40 to a .43

1318 Views 5 Replies 5 Participants Last post by  wack2011a
heres five shots with .40 I dont have .43 yet. I'm guessing i'd shoot around 500fps with .43.

FPS shots with .4
1. 528 =5.18j
2. 535.4=5.31j
3. 525.7=5.12j
4. 519.5=5.00j
5. 535.4=5.31j

Thanks,
Kevin
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I've found that by each added .05 the FPS drops roughly by 25FPS.

Mainly because I chrono most of my guns with .20gram and then .40gram and the HPS difference is nearly always damn near 100FPS.
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