Originally Posted by
dylank0723
Thanks y'all. Now to decide between a gen 4 clock 21, m&p 45 or xdm 45
Placement and bullet construction make a bigger difference than caliber - if you have the budget to run 45 then I'd look at the M&P45, G21SF, and HK45C in that order, but realistically I'd also look into 9mm as an all-around comparable answer. The G19/17, M&P9, HK VP9, and some others are truly phenomenal pistols in 9mm, carry plenty more rounds, and mostly are cheaper to shoot. I don't see 40 being worth that much more on the terminal ballistic end of things, but it can be finicky on glocks (the M&P's were basically designed in 40, and down-converted for 9x19mm), it still costs more and delivers more or less the same projectiles at comparable speeds but it a touch harder on some parts and has a slightly more front-loaded (chronologically) impulse curve, which to me feels closer to a snap than push.
To get anywhere with comparative pistol stuff, you're going to have to read a ton to really be happy with the answer. My personal reasoning on the 45/40 edge going to the M&P is magazine capacity and that the M&P system feels a touch softer for me to shoot - utterly subjective, but the larger calibers I can notice a split time difference. Also, light mounting doesn't have any problematic generations (which some of the non-9mm glocks have had), and for a defensive pistol being able to run a weaponlight is something I consider basically mandatory. If you can wrap your head around the meat of the latest FBI justification for recommending 9x19mm exclusively, (basically using good bonded JHP loads that can handle some barriers penetration wise but still deform and retain mass in soft targets is any caliber is ideal, and once solid BJHP is used the difference between calibers is minimal with regard to stopping fights), then going to 9mm changes that a bit - in 9x19mm if you don't require an external thumb safety, the G17/G19/G26 trio is still functionally unbeatable for stock accuracy, reliability, consistency, and aftermarket support. They're also cheap, so no reason not to look very seriously at that.
Last edited by TehLlama; 10-22-14 at 11:40.
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