I built a Glock 21 Gen 4 [Glock frame + LWD tactical slide & 5.25" barrel with a 24# return spring] that'll handle .45 Super / .45 SMC, and they got some power in those loads. It's quickly become my 'go-to' hiking pistol for everywhere east of the Mississippi.Why you should hunt with an AR of your choice and standard capacity magazines.
And a 10mm for backup with 200gr full power loads.
#3 was wild.