Tony, the gun has Belgium across the top of the chamber, there is a crown over a K, an E over an LG, a series of dots like this- : : : : . , an AL and a series of 9 figures which I really can't make out. SAAMI lists the .22 short with a chamber pressure of 21,000 and the long rifle at 24,000. What do the rest of the guys say about this. Is this feasible? Thanks for the input you guys. ED