(More Then) Thinking About A G21 .40Super

evening, all.

on another site, i've spent the last couple days watching as a member there is having a ball getting aquainted with his newly purchased .40s&w.  i've really enjoyed watching this.  and of course, always on the look-out for my next "must have" purchase, watching him has got me thinking i'm due.

so the thought process began.

back in 2008, i purchased a nib glock 21 simply for the frame that would be the donor foundation for my .50gi.  that project worked out very well but what it left me was a complete .45acp slide that's been stored away in the factory box ever since.

soooo, it was time to do something with that.

i'd watch my brother kinda flail away with a .400 corbon on a ria1911 frame with less then pleasing results.  i had actually purchased an ria1911 identical to his to do the same upgrade but opted out of it seeing what he was experiencing.  i always wanted the corbon performance but not the 1911 headache he seemed to be having.  enter the g21 as the answer i was looking for.

friday night, i called my bro to pick his brain a bid on where he'd go for the components i would need.

a complete frame off gunbroker would be the easy part.  as cheap as any offered through other distributors so an auction was won and it's on the way.

somewhere in the course of our conversation, my brother asked if i'd ever heard of the .40super.  i had heard of the round but didn't know of the specifics.  he enlightened me.  basically a .400corbon on steroids.  based off a shortened .45winmag case.  where the corbon and 10mm auto could get a 135 moving along at 1400 fps, the super with the same bullet reached 1800 fps.  huh.  needless to say, i was more then intrigued.  i was hooked at 1800 fps.  lol.

so, what i'm envisioning is a threaded lone wolf 6.02" .40super drop-in barrel and one of their 4-port 10mm compenstors.  warnings abound of feeding issues with the factory 13-round double stack magazines so to remedy, a couple single stack 10-round numbers.

quick look showed that .40super dies of any flavor weren't all that cheap.  so, i'm thinking of going a little different route.  buy a .400corbon set.  when i need to fl size, use my .45winmag die.  then size the neck and bump the shoulder, if needed, with the corbon die.  it's how i'm doing cases for the .357/.10mm wildcat i've got (10mm fls die and .357sig combo) and that's working perfectly.

i have a charter arms double action revolver in the oop 9mm federal that's been tempting me for some time now, that's kind of making me think twice about which direction i want to go with the handgun craving but i really think this super's where i'm headed.

we'll get some pics up as it comes together.

 

 

k

evening, all.

the wife was good enough sunday morning to let me go out and get some shooting in before the "mothers day" festivities began.

i started early and had a good morning of shooting.  started with the final session of development, confirming velocities and function of the handloads, for the 9mmwinmag, .375supermag, .41ae and .45gap.  all went very well and i'm happy with the finalized versions of each load.

i then kicked off 3 development projects for an amt automag v .50ae, bersa thunder45 .45acp and the glock 21 .41super highlighted in this string.

i get a kick out of every project i do, but i was very excited for this .40super development.  it was a handgun and cartridge combo a long time coming.  as i mentioned earlier, i shot my initial string testing the function of the gun when it was all put together last weekend, so my second string (4-shots), which was 15.5 grs. of aa#9, would be my first shot over the chrony.  here's how things panned out using hornady's 180 gr xtp :

• 15.5 grs = 1359 fps
• 16.0 grs = 1418 fps
• 16.2 grs = 1441 fps
• 16.4 grs = 1462 fps
• 16.6 grs = 1507 fps

even with the compensator / brake, this light g21 is lively.  far from uncontrollable, but you certainly know when you've pulled the trigger.  everything fed flawlessly.  and that performance     ...     mercy.  a 180 at 1500+ fps is a pretty serious handload for a .40 cal cartridge.  i love it.  gotta look at the spent cases now.  i'll pop primers here in the next few day to see how the pockets responded to the high level of pressure this cartridges functions at.

i'm still learning the handgun / cartridge combo, but to this point, it's flat out awesome.  there's no other way to describe it.

only thing i'm disappointed in at this point is myself, waiting so long to get this thing put together.

 

 

k