I have an old H&R Break shotgun with lots of personality. The barrel is marked 410-44. The old man that gave this to me said that he has shot 2 1/2 inch shotgun shells through it many times and even slugs. Just wondering if anyone out there knows anything about the 410-44 and if I could continue to use it the same way. Its not nice enough to be a wall hanger, and too nice to just leave in the gun cabinet. Thanks.