Nitro Piston Conversion Stoeger X20

I'm still not sure though, only way to tell is to pull it apart. A gas ram will obviously have a limited travel distance so that's the only thing I could think of. You can make yourself a spring compressor with a sash clamp or what ever they are called

of course the other option is to keep fixing it til is broke ha ha

you can soon tell if they go supersonic evan with a suppessor fitted you get a very distinct crack,my 177 pcp is set up for 10.34/10.60 gr pellets at minimum for 980fps and 22 fpe but is better with heavier 15/16.4 grain pellets as far as sound goes/havnt chronoed it with lighter 8gr pellets coz they leave suppressor with very loud crack to them,so assumed they are supersonic at muzzle,dont understand why many springers and gas ram rifles are being advertised as capable of 1200fps,when thats bassically unusable with pellets,obviously these rifles are intended to use heavy pellets not the usual 7.5/8.2 gr pellets and should be advertised as such,obviously they are being marketed to first time buyers who velocity means more power and dont know the difference,gamo made big deal out super light weight alloy pellets getting these velocitys but neglected to say accuracy would be a problem when these pellets dropped thru sound barrier,these super light weight pellets do have a place as they are good way to boost velocitys from low powered guns and get flatter tradjectorys but are essentually useless from higher powered guns if going supersonic,tho havnt actually shot pba pellets at supersonic velocitys yet to see if they are accurate until they drop thru sound barrier,but they could very well be accurate until they do drop thru sound barrier,has anyone tryed this test???would be interesting to find out i guess.