If purchasing bulk XTPs, the 50-Pk 240/300 XTP Mags are a tougher bullet than it's 100-pk counterpart 240/300 XTP regulars. They seem to hold together better at higher bullet speeds. The standard XTPs come in a host of other sizes..... 180, 200, 230 and 250s.
The 240gr XTP mag is a 100 pack also.
http://www.hornady.com/store/45-Cal-.452-240-gr-XTP-Mag/Im not sure why you would assume they are 50packs. All the 300gr XTPs appear to be in 50 packs.
