Quote Originally Posted by MQ105 View Post
For comparison (all velocities are with M4SDII):

DD 10.75" --- 75 TAP SBR 2226, 75 Gold Dot 2183, 77 IMI 2391 64 Gold Dot 2287 62 Mk318 2604

Sionics 11.5" -75 TAP SBR 2244, 75 Gold Dot 2273, 77 IMI 2456 64 Gold Dot 2479 62 Mk318 2741


So, yes, the 75 GDs are a bit faster in my tests than the 75 TAP SBR. Still almost 100fps slower than the referenced test.
Your numbers are very similar to mine. I got an average of 2170 out of a 10" SCAR and 2280 out of an 11.5" BCM with the TAP SBR. Those measurements are at the barrel using a magnetospeed. While that is on average 25-50 fps slower than most other 75 grain loads through those guns, the TAP SBR is noticeably quieter and softer shooting through a SF 556 RC2. It is also very accurate. I'll take those trade offs in a gun that will be used to engage targets at less than 100 yards; I bet they won't notice the difference after a center mass or head shot.