Looger sights

Luke---nice to have you here. I note that none of the experts have yet told you that the 16" gunparts bls. have deep chambers. I have installed 6 or so since they were on the market and 4 had too deep chambers. Two of them I turned flange to make one more turn, then cut extractor cut deeper---reshape feed ramp and rechamber. The 16' bl functioned fine with std recoil spring and Win 115gr off the shelf ammo. I learned the hard way 1st bl I installed--fired fine for 2 or 3 shots---then fireing pin keeper stripped out the rear of breech block. If you have one of these bls---put a cartridge in the chamber [before attempting to install the bl] and measure the distance that the head protrudes form the bl. If that measurement is much less than .060--the chamber is too deep. Fireing will puncture the primer and gas excape will strip the fire pin. retainer out of the breech block. this can be fixed---but lot of work and expensive. Post ww2 fire pins have flutes in them---which is supposed to prevent this---Wanna take the chance? Now would you rather read this information or the Looogrr sittee kknotchh shapppe BS. Seems that installing a Luger bl is reserved for the select few----Not so.