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34" Scale 5-String
Picture of bronicabill
posted
Was just laying here trying to overcome my insomnia and achieve sleep when I had the following thought...

Along the lines of .40S&W vs 10mm, why hasn’t anyone stretched the .45 ACP case and created an 11mm round? Seems viable to me since the stock .45ACP is a fairly low pressure round, so you should have lots of headroom to “soup it up”!

Just a thought...


Bill R.
North Alabama
 
Posts: 3515 | Location: Madison, AL | Registered: December 06, 2009Reply With QuoteReport This Post
Fighting the good fight
Picture of RogueJSK
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Something like .45 Win Mag? That's basically a stretched .45 ACP. However, there have only been a couple handguns chambered in that, like the LAR Grizzly, so it's fairly obscure. Since it's longer than .45 ACP, you can't just convert a .45 ACP handgun, but instead have to design a handgun from the ground up for that chambering. (Similar to how you can't just convert a .40 cal Glock 22 to 10mm.)

Or if you don't care so much about the "stretched" part but are just looking for greater performance, there's also .45 Super, which retains similar external dimensions as .45 ACP but allows for higher pressure and greater velocity/energy. Most .45 ACP pistols can be easily converted to .45 Super.

Similarly, most .45 ACP pistols can also be easily converted to .450 SMC, which is another option for a .45 ACP-sized cartridge with higher pressure and greater velocity/energy.

Those latter two are basically ".45 ACP ++P", but it's not just a matter of cramming more or faster powder into a .45 ACP case, which was designed for the .45 ACP's low pressure. Instead, while they have the same external dimensions, they internally require thicker case walls to contain the higher pressure.

However, both remain niche rounds.
 
Posts: 23300 | Location: Northwest Arkansas | Registered: January 06, 2008Reply With QuoteReport This Post
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I've often thought a .50 ACP would be cute.
 
Posts: 6187 | Registered: May 12, 2004Reply With QuoteReport This Post
Avoiding
slam fires
Picture of 45 Cal
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A 460 Roland fits the bill,you jack up the velocity to 1325 fps from 800 fps
Case is about 1/4 inch longer.
 
Posts: 21935 | Location: Georgia | Registered: February 19, 2007Reply With QuoteReport This Post
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Actually, the .460 Rowland is 1/16" longer than ACP and the bullet is seated deeper to fit the ACP magazine.

And, apprentice, there IS a .50 GI if you don't mind paying Guncrafter Industries for it. Velocity is not very high, though.
 
Posts: 2785 | Location: Florence, Alabama, USA | Registered: July 05, 2001Reply With QuoteReport This Post
Experienced Slacker
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quote:
Originally posted by Jim Watson:
Actually, the .460 Rowland is 1/16" longer than ACP and the bullet is seated deeper to fit the ACP magazine.

And, apprentice, there IS a .50 GI if you don't mind paying Guncrafter Industries for it. Velocity is not very high, though.


Thanks Smile
Not all that much slower than .45 ACP really. If the 300gr. HP reliably expand at those speeds then that would be quite a boo-boo monster.

Sounds like it is essentially still wishful thinking though. Not all that practical overall, but I get that Tim Tayloresque hankering sometimes.
 
Posts: 6187 | Registered: May 12, 2004Reply With QuoteReport This Post
I have not yet begun
to procrastinate
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Well the .45acp is already a 11.45mm. Wink Wink
It even uses the same case.


--------
After the game, the King and the pawn go into the same box.
 
Posts: 3311 | Location: AZ - West side of the valley | Registered: October 26, 2006Reply With QuoteReport This Post
We gonna get some
oojima in this house!
Picture of smithnsig
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I’ve always thought the 5.7x28 was almost there. If they could have gotten a 50 gr pill to 2300 FPS in a carbine,that would be an excellent PDW round. Or maybe necked down a 30 carbine to .224 with a 55 gr bullet.


-----------------------------------------------------------
TCB all the time...
 
Posts: 6246 | Location: Cantonment/Perdido Key, Florida | Registered: September 28, 2009Reply With QuoteReport This Post
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quote:
Or maybe necked down a 30 carbine to .224 with a 55 gr bullet.


That is the 5.7 Spitfire, except they used a 40 gr bullet to get higher velocity from the small case.
 
Posts: 2785 | Location: Florence, Alabama, USA | Registered: July 05, 2001Reply With QuoteReport This Post
Member
Picture of .38supersig
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quote:
Originally posted by apprentice:
quote:
Originally posted by Jim Watson:
...there IS a .50 GI if you don't mind paying Guncrafter Industries for it. Velocity is not very high, though.

Thanks Smile
Not all that much slower than .45 ACP really. If the 300gr. HP reliably expand at those speeds then that would be quite a boo-boo monster.

Sounds like it is essentially still wishful thinking though. Not all that practical overall, but I get that Tim Tayloresque hankering sometimes.


You could always try out some of these:




My other Sig is a Steyr...
 
Posts: 4624 | Location: Somewhere looking for ammo that nobody has at a place I haven't been to for a pistol I couldn't live without... | Registered: December 02, 2014Reply With QuoteReport This Post
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