AyA 20 ga 4/53 boxlock 1996 vintage with little use. With Remington gun club shells (1200 fps - 7/8 oz the safety returns to safe position when right barrel is fired.
When using my reloads 13 gr 20/28 powder 3/4 oz shot (1155 fps with about 6400 psi) the gun functions correctly.
What might be the problem? Is it very serious and is it difficult to repair? Guns weighs 5 lbs 12 oz
Thanks in advance for your input