recoil in gas delay blowback pistols

aric84

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Kanata/Ottawa
Brought my new Norinco M77b to the range Sunday and fed it 100 rounds of winclean bulk pack ammo. I couldn't believe how snappy it was, felt like the pistol was smacking my palm. Ran 100% of the time though. I had a couple of IVI rounds that I picked up off the ground at the range that were clean and still useable. I fed them through the M77 expecting a heavier punch since I would assume them to be loaded to NATO specs(close to +P) and I assume 147 gr. Well suprise suprise it was beautifully soft to shoot.

Maybe the higher pressure slows down the cycle more via the piston? Stumped here. Might have to try out some different loads
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Tried in the pistol forum but no answers. Figured that it could also have to do with loading since different loads with different pressures could be at work... Might jsut have to try some loads out and see what happens.
 
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