.45acp Brass for 460 Rowland Load in Converted Pistol

[Snowdog]

I'm putting together a .460 Rowland (as a trail pistol) and have gobs of .451 FMJ and new .45 ACP brass.

Eventually, I will have once-fired .460 Rowland brass to load, but for now, all my .460 Rowland is factory fodder.

I recall seeing a cross section of .45 ACP, .45 Super and .460 Rowland cases. Whereas the .45 Super seemed to use beefier brass (fortified webbing), the .460 Rowland appeared to simply be a stretched-out .45 ACP.

If this is the case, would it be possible to load .45 ACP brass with .460 Rowland loads (being ever-so-careful to mark them as such), or would this be simply too hard on the extractor being that the case is a couple millimeters shorter?

The platform is a Springfield XDm 5.25 with Rowland conversion installed.
The loads would be something similar to .45 Super in ballistics for range use.

Thanks in advance!

 

[joneb]

These cartridges head space off the case mouth. I would use the correct cartridge for the barrel chamber, not sayin it won't work but...

 

[Snowdog]

That was my concern as well. I'm already going to be pushing this pistol hard with .460 Rowland ammo. Perhaps I shouldn't press my luck and just wait until I the appropriate cases.

 

[Walkalong]

I would suggest being patient and wait for the right brass.

 

[FROGO207]

The 45 ACP cartridge was developed from the 30-06 brass. You could cut them or 308 brass down and ream the necks if necessary as well. If you have the time and want to experiment, might be fun. FWIW I would not try the 45 ACP for reasons mentioned above. I have heard times when the extractor will hold the rim in place enough to allow the firing pin to work using 45 GAP in 45 ACP firearms when reloaded by mistake but would not trust this method to work or be safe.