Would it be ok to shoot a 2 4/5" shell out of a shotgun made to shoot 3" shells?
The 2 4/5" is 70 mm & 3" 76 mm. I really don't want to screw up my gun but a friend gave me some of the 2 4/5" shells a while back and they need to be used up. They fit in my gun nicely and they're 12 gauge like they need to be. It's a Harrington & Richardson Model 88 shingle shot if you're curious. The rounds even pop out like the 3" shells when you break the barrel.