Quote:
Originally Posted by Bull 228
Morning,
As a Class 3 dealer I feel like I have had a better than average exposure to suppressors. (no intent on being a smart ass, just qualifying) I have always figured that between roughly 950 to 1000 fps one should expect to be safely sub sonic. I had not had any prior experience with the "Whisper" and it is quite possible that I had exaggerated expectations. But it sure seemed to me that I was still getting the sonic crack. In hind sight I should have video taped the shoot so that I could listen to the shots from a different perspective. I think I will mix up another batch of ammo at slightly lower fps and see what the results are. Thanks for the input, I am always happy to hear from others with more experience than I. I am definitely still inexperienced in the Whisper department.
NT
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You are correct that if you are under 1000fps you should be subsonic. That's why I was curious as to the possibility of having a chrono that reads a little low. I've heard of shooting across two chronographs side by side and having them read 100fps different than each other.
I asked about experience with suppressors because some folks think what they see in the movies is how their gun should sound. A Whisper is quiet as far as suppressed guns go but it isn't "movie quiet" so to speak. I would do exactly what you plan, lower the velocity just a bit and see if you get better results. You might also try different powder combos.
My rifle likes 2400. I use 8.5gr for a 240SMK or 8.0gr for a 208 A-Max. They both come in at just over 1000fps.
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