I have a 78 python that suddenly started locking up on the same spot on the cylinder every time(purchased new for 310 by dad in 79) weapon has maybe 3k rounds in all that time, mostly .38spl, anyone got any ideas on what's wrong? timing/ hand issues? Is colt fat at returning items? I am planning on harvesting some free range bacon this fall and would like to start planning now. Any info would be appreciated.