45 Super and 250gr

[Alaska]

For My Alaska Trail pistol Glock 21 in 45 Super
5.2” KKM
22 Pound Spring

250gr CAMPRO RNFP
8.6 Power Pistol
Fed Nickle 45 ACP Brass Small Primer Pocket
Rem 7.5 BR Primers
1.190”
1080fps

 

[fsrmg1]

I use a Sig P220 ST for Super. The factory barrel offers plenty of head support, so I was lucky not to need switching it out. I tried the heaviest Wolff mainspring, but due to the larger diameter wire needed get the added resistance, it was starting to bottom out early on the spring under recoil with full Super loads.

My solution was pure luck. I came across a recoil spring specialist (in Greece?) who makes recoil reduction assemblies similar to what H&K uses in their 45 USP. I told them what I wanted it for, so they went with extra heavy springs (inner and outer) and gave me a bunch extra for when needing replacement.

Happy shooting!

 

[Alaska338]