Topic: .460 Rowland and .45 Super

[XDMHMMWV]

  Has anyone done any research on converting their gun to the .460 Rowland or the .45 Super?
I know both require heavy recoil springs, around 24 to 30 lbs.
The .460 requires a compensator (to reduce slide velocity, and make a louder boom ) , and possibly a different extractor.
Added weight to the slide will reduce the chances of slide hammering by decreasing the slide velocity
A modified 1911 chambered for either will experience frame cracking around the take down lever in about 5,000 rounds.
I was told the tupperware guns are better suited for these cartridges because they are designed to not impart the recoil force into the frame.
As most know, the .45acp chamber preassure is around 20,000 psi, the Super is 30,000 psi, and the .460 is 40,000 psi.

  After finding out all this, I thought I would use a Springfield XDM (4.5 inch barrel), or XD Tactical (5 inch barrel).
I thought about using a Glock; but, I like the large block of steel that keeps everything together in the XD. Any thoughts?
I also read that the H&K is a heavier gun that can shoot Super right out of the box.
I have a called Storm lake, and Springfield but, I have to wait until Monday for a response.

 I thought these cartridges would be fun to shoot, and to use for hunting. The finished gun should look pretty wicked with a scope, or Red Dot on it
I would like to get a 10mm; but, the appeal of being able to have a widely available cartridge ( the .45acp) and being able to shoot home rolled 10mm equivalent rounds ( with a .45 hole)is very appealing.
Any well researched thoughts or experience on these cartridges?

[AR10ER]

I have wanted one for a long time, just never got around to doing the conversion. Here is a site to help you out.

http://www.acecustom45s.com/gunsmith.htm

[J Mack]

I have a .45 Super and have talked  about it here,
http://www.boiseshooters.com/index.php?topic=10417.0

[XDMHMMWV]

Thanks AR10ER for the link. I have been to that site in the past, and they don't explain why you need a new barrel with the Glock conversion, and not the 1911. Unless, it has to do with the rifling.   Never mind, Glocks use an unsupported chamber, thats why they need a new barrel.

I have a .45 Super

What gun did you have chambered for the Super?
If it is a 1911, approximately how many rounds do you have through it?
Have you tried using 30-06 or .308 trimmed cases for loading Super?

[J Mack]

What gun did you have chambered for the Super?
If it is a 1911, approximately how many rounds do you have through it?
Have you tried using 30-06 or .308 trimmed cases for loading Super?

I have a Pre Series 70 Colt 1911 and I have approximately 4500 rounds down the Bar-Sto ramped barrel.
I still use Starline brass and I have not experienced any issues with it.

[Nealio]

I always thought that a longslide would be the best bet for a .45 Sooper or .460 Rowland.  The extra slide mass should slow down the velocity.  In fact that's why I bought my Para 6".  However you can't get any .45 Sooper brass from Starline until they get enough orders.  My buddy has been on the waiting list for 4 months..  As soon as they are making it again I'm thinking of running some .45 Soop through my Para.

[fj40mojo]

I always thought that a longslide would be the best bet for a .45 Sooper or .460 Rowland.  The extra slide mass should slow down the velocity.  In fact that's why I bought my Para 6".  However you can't get any .45 Sooper brass from Starline until they get enough orders.  My buddy has been on the waiting list for 4 months..  As soon as they are making it again I'm thinking of running some .45 Soop through my Para.

They had .45Super Starline at Cliff's not long ago. May still have it in stock.

[J Mack]

I always thought that a longslide would be the best bet for a .45 Sooper or .460 Rowland.  The extra slide mass should slow down the velocity.  In fact that's why I bought my Para 6".  However you can't get any .45 Sooper brass from Starline until they get enough orders.  My buddy has been on the waiting list for 4 months..  As soon as they are making it again I'm thinking of running some .45 Soop through my Para.

Garey Hindman trade marked the name .45 Super killing the round and brass.
Use Starline .45 +P brass and don't look back.

Back in the day we used H-S6 and now we use Power Pistol for powder.

[XDMHMMWV]

The brass problem is why I thought 45 would be better then 10mm, as you should be able to use 30-06 or 308 if you can't get your hands on 45 super brass.
Also, couldn't you just add extra weight to the slide to decrease slide velocity? I have thought about adding mounts to the outside of the slide, with slide-on lead weights with a set screw to keep them on.

[J Mack]

The brass problem is why I thought 45 would be better then 10mm, as you should be able to use 30-06 or 308 if you can't get your hands on 45 super brass.
Also, couldn't you just add extra weight to the slide to decrease slide velocity? I have thought about adding mounts to the outside of the slide, with slide-on lead weights with a set screw to keep them on.

No need to add weights to your slide, I've shot super loads from factory stock guns as long as they have full supported barrels. A heavy spring and buffer is recommended if you plan on shooting supers on a regular bases.

The load I shot the most from my super was a 185 gr HP at 1200 FPS not much faster than today's +P loads.
 

[Nealio]

The brass problem is why I thought 45 would be better then 10mm, as you should be able to use 30-06 or 308 if you can't get your hands on 45 super brass.

I think you can find 10mm brass a LOT easier than .45 super. I just bought mine from Starline. I've even been given a few hundred once fired 10mm cases

[XDMHMMWV]

I think you can find 10mm brass a LOT easier than .45 super. I just bought mine from Starline. I've even been given a few hundred once fired 10mm cases

30-06 and 308 is more plentiful then 10mm.  Especially if the SHTF
It is the ability to trim these two shells down to 45 Super that draws me to the cartridge.