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Old March 25, 2020, 11:01 AM   #31
Pistoler0
Senior Member
 
Join Date: November 15, 2019
Location: Conifer, CO
Posts: 632
Quote:
Originally Posted by COSteve View Post
Swifty, if you are looking at a 10mm full size Glock, consider the G40 with the longer 6" slide and barrel. Besides giving you a 30% longer sight radius, the extra 4+ oz of weight at the muzzle makes for a faster and more accurate follow-on shot if needed. Even better, full power 10mm loads come alive with the extra 1.4" of barrel length. (How about my 'nuclear' 165grn loads chrono'd at 1,579fps!!!)

I developed the first 6" longslide Glock 10mm way back in 2004 on a lark. I had bought a German steel slide made for my G21 and picked up a Jarvis 6" 45 barrel and mags in early 2004. Later that year, after some fitment testing using the barrel from my G22 as a mockup, I talked Kevin at KKM Precision into making me a one off, custom 45-10MM conversion barrel for it as Glock had sized the 10mm barrel for the G20 with the G21 45acp in mind. Below is a picture of it right after I got the stainless steel 45-10MM conversion barrel and before I installed it showing 10mm mags and ammo on the left and 45acp mags and ammo on the right.



The G40 would make an outstanding farm pistol as it has the power needed for most anything. I handload both 10mm and .357Mag and my G20L with just full power 165grn loads, not my nuclear ones, produces slightly higher velocities with a heavier, larger diameter bullet than do my full power 158grn .357Mag loads in a 6" S&W 686. Plus, with my mag base extension, I have 17+1 rds of 10mm ready to go vs only 6 rds in my Smith and the total package actually weighs less than the Smith too. Something to consider.
Hey COSteve, you in Colorado?

If so I'd like to pick your brain about that 6" slide and barrel for G21.
I have a G21 for which I have always dreamed of doing the same thing, so I can use it for hunting (with 45 Super).
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