Wilson Combat .458 HAM'R

As if the ongoing failed launch of the .510 Beck wasn’t already enough of an afterthought (the new AR big bore caliber announced by Beck 2 years ago but still stuck in limbo…), I noticed today the announcement of a new caliber from Wilson Combat - the .458 HAM’R. It is basically a .458 SOCOM improved, and is akin to something like what a .450 SMC or .45 Super is to a .45 auto in that regard. Wilson has done this before with their 7.62x40 Wilson Tactical load. The video link below claims that this new caliber outperforms the .450 Bushmaster, the .458 SOCOM, and the .50 Beowulf, and that the AR-10 pattern rifles they make for this rd can tame the 46,000 psi it produces, and that 3,000 ft-lbs of energy is typically delivered to target. I assume the case is more or less a .458 SOCOM which has been redesigned with strengthened case walls, web, and improved in slight ways. The custom Lancer mags hold 7 or 9 rds if I understand them correctly. Wilson shows two loads for this caliber at the moment, with a 300gr FMJ from Freedom, and a 300gr TSX from Barnes.


Nice to see an apostrophe in Starline’s headstamping repertoire anyway. Has anyone ever seen an apostrophe in a headstamp before?

Comparison 458 HAM’R vs. 458 SOCOM
On below picture on right side: left 458 HAM’R vs. right 458 SOCOM

Introduced in 2018 by Wilson Combat, the .458 HAM’R looks to be very close to the 458 SOCOM, with their very rebated rim, however it’s case neck starts 2 mm (or less) down the case then the SOCOM, producing 31% more pressures up to 46,000 PSI and up to 3,000 foot pounds per square inch of energy out of a 18" barrel.

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