i have a 1970's weatheryby orion 32" trap gun problem is sometimes it turns into a self opener after i shoot any ideas before i take it to a gunsmith if i can fix it myself it will save money for more shot thanks harpo
Make sure it hasn't been over oiled in the lockup area. I can get my Browning to do that if I heavily oil the barrels and leave it muzzle up in the safe over the winter. This may require buttstock removal, gumout spray, high pressure air and a LIGHT re-oiling.
Considering it's age, not to mention usage, it may be something more serious.