I don't think it is any revelation that a jacketed bullet at 1100 fps isn't going to perform like it would at 3000 fps. "What's the point of shooting a round at a reduced velocity knowing that isn't going to preform like it should? " What kind of energy does that give you and how does that compare to a 77 grain Sierra Match King open tipped, boat tailed bullet at 1100 fps. They are considered among the most powerful pellet rifles ever made so I think we would be safe in using them as a reference. The rifle I shoot them out of is not capable of 1100 fps but there are air rifles that advertise velocities in that neighborhood. Not that it matters but just for the sake of discussion, does anyone have any data on the energy of an air rifle pellet at 1100 fps ? I have never understood why they are even mentioned in the same thread. They are solutions to two entirely different problems. 22LR conversion kit has nothing to do with subsonic. 22LR or pellet rifle ever dreamed of.Ģ) Using a different upper to convert an AR15 to. I am not trying to put anyone on the spot here so let me just say this:ġ) A 77 grain jacketed bullet (or even a 55 grain jacketed bullet) driven to somewhere around 1100 fps gives you significantly more performance downrange than any. I can fix small stuff, but if I really shred the internals, then I will just chop up the can and make another one on a new form 1. If a load does not keyhole at 100 yards, then I consider it safe to use suppressed. The only ones that ever see factory ammo are the rimfire and 7.62x36 or 7.62x54R guns.Įdited to add I do not have a warranty on my silencers as they are homemade on form 1's (< $50 + tax). I could care less about warranties on my guns. I am thinking that if I were to get a ar-15 pistol, attach a stock and 16 1/4" barrel, remove any buffer weights and chop the spring, I may be able to make something that works semi-auto, but that is not in my budget now. None of them cycled the action enough to pick up the next round either. I was able to stablize the speer 70 grain round nose and the 55 grain FMJ, but not the 69 grain and higher match grade bullets in my 1-9 twist ar-15 when shooting subsonic. My limited load development gave me about 2 moa. I'm not sure how well a 22 conversion kit shooting rimfire bullets in a centerfire barrel works, but I hear they do not do as well as a dedicated 22lr ar-15 upper. It is wimpy, but lets see a raise of hands for those willing to take one in the gut. I was trying to develop a 223 subsonic load for my ar-15 using surplus WC820 (like H110) powder last year because they are much better powerwise than 22lr.Ħ0 grain Aguilla SSS at 700 fps is 65 ft-lbsĤ0 grain std vel at 1050 fps is 98 ft-lbs.ĥ5 grain 223rem at 1050 fps is 134 ft-lbsĦ9 grain 223rem at 1050 fps is 168 ft-lbsĨ0 grain 223rem at 1050 fps is 195 ft-lbs
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