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| | | |-+  How much velocity is lost when converting to an SBR?
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Author Topic: How much velocity is lost when converting to an SBR?  (Read 189 times)
300winmag
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« on: August 09, 2017, 04:14:18 PM »

Anyone have any confirmed data* on how much velocity is lost when converting a PS90 to an SBR?

*confirmed via chronograph.

Eric B.
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300winmag
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« Reply #1 on: October 12, 2017, 10:31:03 PM »

FOUND IT!

Wikipedia, in their 5.7 x 28 article has a chart that shows the SS197 (the current blue tip V-Max FN round) has a muzzle velocity of 1,0950 ft./sec. from a P90. A footnote to that chart says there is about 150 ft./sec. more velocity from a PS90.  So you're pretty close on that guesstimate.

Eric B.
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