1911 40super conversion updated

[JB75]

Ok I completed my conversion of a rock island armory 1911 .45 to a 40 super. The biggest cost was the barrel it was about $215 for a 5.72 in ported barrel drop in fit that included a barrel busching and link. I also bought a 24 .lbs recoil spring a titanium firing pin and heavy duty spring. The barrel I ordered from storm lake went right in the gun and with the recoil spring the gun was ready to fire I replaced the firing pin and spring to be safe. The first day at the range the pistol fired great no problems as far as a conversion it was very easy and with the 24 lbs. recoil spring it was a joy to fire and recoil was comparable to a standard .45 acp.

 

[El-Cigarro]

.40 SUPER????? I heard of .38 Super, but a .40?????

 

[melensdad]

Is a 40 Super something like a 10mm SHORT

 

[JB75]

40 super is a necked down 45 acp to a 40 cal. and slightly longer it is suposed to mimic the 44 mag but so far in my tests it just passes the .41 mag but not a .44 mag

 

[melensdad]

That sounds interesting, its sort of like the 357 Sig only built on a different case and throwing a 40 caliber bullet.

I'm guessing its strictly a hand loaded round.

What bullet weight are you throwing and what velocities do you expect?

 

[JB75]

double tap makes it in 200 grain flat tip or 135 grain nosler hollow point for about $55 for a box of 50 and a company in california makes it but I cant remeber the name redding makes the only dies I know of a reload data is scarce at best but if anyone is intrested I have got reload data from Tony Rumore who worked on the prototype round in '98

 

[dusterboy49]

40 super is a necked down 45 acp to a 40 cal. and slightly longer it is suposed to mimic the 44 mag but so far in my tests it just passes the .41 mag but not a .44 mag

Can you put a pic up of the round along side a .45 round?

 

[Leo]

That sounds like the old .400 Corbon.

 

[JB75]

Tried to post the pic but could not. I got the storm lake barrel and it fit perfectly the 24 lbs. recoil spring was a bit of a pain but the pistol fired every time no problems although the double tap ammo was a little slow according to my chrony. Over all I'm very pleased with the conversion and how easy it was.

 

[7.62asprin]

I didn't even know there was a 40 super. @_@

 

[handgun]

BOOM BABY i just learned something.. 40 super

 

[Tombs]

Why go for the 40 super over the 460 rowland?

Much easier to reload for the 460, fairly cheap to convert to. I have one and it hasn't been very fussy about anything.

Only thing I really dislike is being required to have a compensator... If there was a way to get that power out of the 1911 platform without a compensator, I'd be in heaven. And I mean by modifying the gun, not buying a wilson combat hunter.


Really wish the 38 casull hadn't died off, that'd be my first choice for a souped up 1911. I know you can jump through hoops and shoot a dead caliber, but it's too much of a pain for a mere mortal like myself.

 

[01deuce]

400 corbon is a necked down 45 acp. 40 super is a necked down 45 super

 

[SteveP101]

40 super

40 super is a necked down 45 acp to a 40 cal. and slightly longer it is suposed to mimic the 44 mag but so far in my tests it just passes the .41 mag but not a .44 mag

Actually it is a 45 Winchester magnum necked down to a 40. A 45acp necked down to 40 is a 400 Corbon, yes almost identical ballistics to a 240 grain 44 mag