pitted bore wrote:bloodhound wrote: ... I have just recently gotten into reloading and mistakenly ordered a box of Hornady XTP 300 gr. They however are not the XTP Mags, so I guess what I want to know is can I safely reload these or do I need to get the Mags? ...
bloodhound-
The regular XTP 300-grain Hornady bullets can be reloaded and used as safely as the XTP Mags. The difference between them is the velocities at which they are designed to expand. The regular bullets expand at much lower velocities than the Mag bullets. They are intended to be used at muzzle velocities about half of that you can achieve with the 450 Bushmaster. They should be just fine for plinking and getting your feet wet in reloading.
The Mag version, with a thicker jacket and probably harder lead core, requires higher velocities for expansion. Although the 450 Bushmaster is at the upper end of the velocity range, the reports that have come back to the forum haven't indicated any failures. If you're seeking a 300-grain hunting bullet, the Mag version is called for, unless you're going after coyotes or other vermin, for example.
Number and spacing of the crimp groove differs also between the two types. I haven't measured the differences, but possibly some adjustment of your seating die may be necessary if you're switching between the two types.
--Bob
Yeah, What PB has so well said.. I might add that the regular xpb's were designed for 45 Colt speeds, as it pertains to expansion, where as the mags are made for the 454 Casull/460S&W. In other words, if one were using a 22-250 with Varmint Bullets, on Moose, one could expect far to much expansion/no penetration and the Moose will get away and die somewhere else.
However, your results will be similar to the Varmint example and you prolly wont want them for shooting a charging 2000lb Bear, but you do have 300 GRAINS of "KICK-UM-TOOK-US"! So, even if you don't get any real penetration, they will be better than you finger, in such situations.
The reality is, with all the choices we have, shoot'em and enjoy'em, but for anything bigger than deer, we have far better choices, again, in other words, the regulars will act like a varmint bullet, at our speeds, which may or may not be what you desire, depends on the mission, but they will be safe to shoot and plink with, if you follow normal Safety Procedures..
..t