i wouldn't bother in .45. i had a fusion 5" and a kimber 6 in. 10mm. the 5 had several experiments built in. great gun, my grandson took it! the 6in is much easier for me to hold at long range, so much so i invested in a accuracy x 6in. i have found the 10mm a great woods gun. penetration is very good, energy is fair. i don't think the 7 in would be as easy to use as the 6. i carry in a chest holster, weight is fine. i much prefer the 6 in for 10mm. i shoot hogs. as always ymmv