astocks2622
Member
I was just wondering if it's safe to shoot .40 ammo through my 10mm. I know the .40 was developed from the 10mm, and that they are very similar except for OAL. A buddy has an M&P .40, so i took some of his ammo and slowly hand racked it through my 10mm. it fed and eject the entire mag with no problems. what do you all think?