Home Forums Hunting & Shooting Handguns Glock 21?

I've been wringing out an XD 'Mod.2 45 ACP Sub Compact’ for about a month and so far, really like it, I may pick up a 4" Service model to explore the 45 Super and/or 460 Rowland.

That M&P 45 frame has me interested.

Partly because S&W has come out with the 10mm version and I could use one as a test gun for ammo production, and the 10mm versions come with a slide cut for optics. I keep thinking that it may be possible to have a multi caliber gun, like I do with my large frame Glocks. My G21 .45 converts to 10mm in just about a minute, so I wonder if the same is possible for the S&W. I have heard some good things about the new S&W 10, as far as the handling characteristics, so it has my interest. Plus it would make a fine dual purpose lightweight gun when hiking in predator (Grizzly) country then going into town. One gun for both tasks.

Have you fooled with the 45 Super any, Mackay?

I don't have a G21. I do have an M&P .45 and it is probably the best general purpose do anything anywhere .45 ACP I have ever owned. The M&P 10mm is very interesting to me also. With that said, I have a G20 10mm that I have killed deer, hogs, a cranky rattlesnake and had in my hand with a big boar black bear 20 yards away that seemed irritated at sharing the trail with me. I have a great deal of confidence in that G20 and fifteen 220 gr. hardcast at 1200 fps.

M&P45 love:

That looks nice. I would like to shoot some other striker fired 45’s just to compare them.

I would bet that most people would find the feel of that M&P in their hands superior to the feel of the Glock 21.

The Glock 21 frame is big. My Glock 41 (same frame) is a Gen4 and is as slim as it gets, and it’s still meaty. You do get 13+1 capacity. The M&P45 grip is the same width as the 9/40 frame, but its a bit longer from the back to front. If you are comfortable with a medium/medium-large M&P9/40 backstrap, the M&P45 with a small grip mod will feel real familiar.

Very little.

I played around with it many years ago in a G21. I had to fiddle with recoil springs and mag springs to handle it and finally considered a comp. I ended up deciding that I could simply roll with +P style ACP loads and achieve what I wanted and use the same mags and everything else, though a heavier recoil spring was (and is) often used.

I’m just now starting to change out springs to run different loads. I feel like most springs are “Winchester White Box” rated and full powered loads benefit from a heavier spring. Well, except the Gen4+ G19. I swear those have G23 recoil springs in them.

I’ve also noticed hammer-fired guns are oversprung and I almost always go to a lighter hammer spring. (I’m looking at you, SIG)

Some years back I put a 24# Wolff spring in my G21 and loaded up some ammo a bit hotter than +P with 230gr XTPs. The ammo in the magazine was nose-diving and not feeding properly. I'm guessing from the slide slamming forward that much harder with the heavy spring.

I decided it wasn't worth the hassle and extra beating on the pistol.

Thanks I appreciate it.