The bulk bullets from Winchester, and Remington available from places like Midway, or Cabela's measure .456", and .455" respectively, and are both of hollow base design, which usually goes a long way towards helping solve the oversized throat problem, since they obturate quite easily filling the throat upon firing.

44forever-

A lot of the 25-2's have the oversized throats as well. In fact, I'd say that in all likelyhood, more have oversized throats than not. Mine has them that measure .455", and .456" all on the same gun, and lots of other guys have posted similar findings with regards to their own, here in the past. Just something to be aware of. The fact that the 25-2 was marketed as a target gun doesn't really matter as far as throats sizes went on these guns.