Not sure I understand. You can expect that any factory ammo will be safe to fire in any gun that was originally chambered for it IF the gun is in good condition. That's why factory ammo for some cartridges, 6.5 x 55, 7x 57 mauser and .30-06 for instance are loaded down quite a bit below what modern rifles can handle.
There are a very few exceptions for some really old cartridges such as the .45-70 but the ammo box will have proper limitations noted on it for what it is safe to use in.
Nothing is safe if the gun is not in good condition. ??
Last edited by 1hole; 04-16-2008 at 12:14 AM.