Author Topic: CAN YOU TURBOCHARGE YOUR .45?  (Read 192 times)

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Offline Graybeard

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CAN YOU TURBOCHARGE YOUR .45?
« on: August 06, 2020, 12:13:14 AM »
https://gunmagwarehouse.com/blog/turbocharge-45/

BY TOM MCHALE                   JUNE 16, 2018



What if I told you that your .45 pistol could fling a 160-grain bullet at 1,350 feet per second? Or maybe a 255-grain hard cast semi-wadcutter projectile at 1,030 feet per second?

Well, assuming you have a modern .45 ACP pistol with adequate strength, you can. Everything else is the same: barrel, magazines, and projectiles.

.45 These 16-grain Barnes TAC-XP all copper bullets zip along at over 1,300 feet per second.
New life for the .45? These 16-grain Barnes TAC-XP all copper bullets zip along at over 1,300 feet per second.

Almost 20 years ago a company called Triton launched a cartridge named the 450 SMC. It shares exterior dimensions and bullets with the .45 ACP but packs more wallop. Hereís how it works. The case, while the same on the outside is NOT standard .45 ACP brass. Instead, 450 SMC brass uses a small rifle magnum primer.

That seemingly insignificant change allows for two different things. First, the beefed-up heat and flash cause more aggressive ignition of the propellant charge. Second, fewer cubic millimeters of primer material translates to more cubic millimeters of cartridge brass in the base area. That extra metal in the case allows the cartridge to operate safely at five to six thousand more pounds per square inch of pressure without bulging or rupturing. The result of those changes is that a .45 ACP pistol rated for +P ammo can also fire the 450 SMC cartridge. That even applies to Glocks with their less than fully supported chamber.

A few years ago, Doubletap Ammunition bought the rights and gear to bring the 450 SMC back to the market. As of now, the company is offering six different loads ranging from a 160-grain Barnes TAC-XP all-copper projectile to a 255-grain hard cast semi-wadcutter. In the middle are JHP and bonded bullet offerings in the more traditional 185 and 230-grain range.


The 255-grain hard cast loads can help give your 1911 or other 45 new life as an outdoor activity companion.

Iíve shot them all through two different pistols, a Springfield Armory 1911 TRP and an FN FNX 45 Tactical as well as the new CMMG Banshee .45 ACP pistol. Recoil is noticeably sharper because, well, physics is physics, so the faster you launch, the more you feel. I measured some velocities for kicks and found the following.

Ammo                 Springfield Armory 1911 TRP              CMMG Banshee Pistol Carbine

Doubletap Barnes                    1,240.7                                          1,270.7
TAC-XP 450 SMC 160 grain

Doubletap Controlled Expansion    1,388.0                                          1,342.5
JHP 450 SMC 185 grain

Doubletap Bonded Defense    1,178.0                                          1,191.3
JHP 450 SMC 230 grain

Doubletap SWC Hardcast            1,085.0                                          1,090.7
450 SMC 255 grain

So, there you have it. If you feel compelled to get more oomph from your .45, then you might want to check out the 450 SMC. If itís going to be a regular diet item, you might want to consider upgrading the recoil spring to a higher weight alternative to save some wear and tear on your pistol.


Tom McHale

Tom McHale is a committed learning junkie always seeking a new subject victim. As a lifelong student of whatever grabs his attention on any particular day, he thrives on beating rabbit trails into submission. In between his time as a high-tech marketing executive, restaurant owner, and hamster cosmetology practitioner, heís published seven books and nearly 1,500 articles about guns, shooting, and the American way.


Bill aka the Graybeard
President, Graybeard Outdoor Enterprises
256-435-1125

I am not a lawyer and do not give legal advice.

Jesus is the way, the truth, and the life anyone who believes in Him will have everlasting life!

Offline Lloyd Smale

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Re: CAN YOU TURBOCHARGE YOUR .45?
« Reply #1 on: August 24, 2020, 01:08:52 AM »
I fooled with it quite a bit when I was younger. Anymore I guess I don't mind beating on a black gun but my 1911s are shot with factory level loads at max. Most times even down loaded. If I want a more powerful semi auto I take out one of my 10s. To me its about like trying to fit a thong on a 70 year old lady.
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Offline kinslayer1965

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Re: CAN YOU TURBOCHARGE YOUR .45?
« Reply #2 on: August 25, 2020, 04:34:19 AM »
To me its about like trying to fit a thong on a 70 year old lady.

 :o

CR
A man without a stick will get bitten, even by sheep.

Offline Graybeard

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Re: CAN YOU TURBOCHARGE YOUR .45?
« Reply #3 on: August 25, 2020, 09:47:59 AM »
There are some 70 year old ladies who would look really good in a thong. I recall seeing one on Fox news just recently, I think she was 71 and looked half that.


Bill aka the Graybeard
President, Graybeard Outdoor Enterprises
256-435-1125

I am not a lawyer and do not give legal advice.

Jesus is the way, the truth, and the life anyone who believes in Him will have everlasting life!

Online Dee

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Re: CAN YOU TURBOCHARGE YOUR .45?
« Reply #4 on: September 12, 2020, 02:44:26 PM »
That extra "kick" hes talking about is the 10911 slide hitting the frame harder than it already was, at the back of the cycle.
I guess him being a "committed learner", he hasn't "learned" you need to increase the recoil slide spring to avoid cracking the frame. A recoil buffer wouldn't hurt either.
1st Corinthians Chapter 11, Verse 28. But let a man EXAMINE HIMSELF, and so let him eat of "that " bread, and drink of "that" cup.

It doesn't really matter how you "think" it is, but how it ACTUALLY is.