Barnes XPB bullets in .451 cal.

[BlindJustice]

I was looking at the Barnes XPB bullets in .45
cal. at MIdway. FYI - The Barnes XPB bullets are
solid copper with a touch of zinc and guaranteed to
retain 99% bullet weight. So, I note
185 gr. HP
225 gr. HP
250 gr. HP
then they have
200 gr. HP named .46o (for the XVR S&W?)

All of these bullets are sized .451 so why
wouldn't it be ok to load the 200 gr. Barnes
XPB for .45 ACP or .45 Auto Rim ? I have
some .45 AR with the 225 gr. Barnes XPB
bullets but would also like to have the 200
gr. as I have 200 gr. Leadhead SWC and
200 gr. Hornady XTP and would like the
Barnes 200 gr. loaded to the same 1,000
FPS.

 

[rcmodel]

The 200 XPB for the .460 S&W is very probably a much harder bullet intended to perform at .460 velocity.

I doubt it would open up at all out of a .45 ACP or .45 AR.

The other thing is, I think I read somewhere that that bullet is slightly tapered toward the base to match the very heavy inside case taper of the .460 case.
(Straight sided solid copper bullets caused a case bulge)

If that is the case, it wouldn't likely stay put in the taper-crimped .45 ACP.

You might want to call Barnes and ask about some of that though.


rcmodel

 

[BlindJustice]

I went back and looked at the bullets -
the .460 (.451 dia. ) 200 gr. is a HP but
it looks like a spire point / flat base ugh.

Thanks

 

[Sergeant Sabre]

I don't think you'll get that bullet to fit in either of those cartridges. If you get the OAL short enough to chamber you probably won't have any powder space.