| .458 HAM'R | ||||||||
|---|---|---|---|---|---|---|---|---|
| Place of origin | United States | |||||||
| Production history | ||||||||
| Designer | Bill Wilson | |||||||
| Specifications | ||||||||
| Case type | Rebated, bottlenecked | |||||||
| Bullet diameter | .458 in (11.6 mm) | |||||||
| Maximum pressure | 46,000 psi | |||||||
| Ballistic performance | ||||||||
| ||||||||
| Test barrel length: 18 | ||||||||
The .458 HAM'R (11.6x39mmRB) is a large bore, centerfire rifle cartridge, designed for use in AR-15 style rifles. Wilson Combat, owned by Bill Wilson (developer of .458 HAM'R), sells a .458 HAM'R chambered, AR-style firearm named the WC-12, which is between the sizes of the AR-10 and AR-15 platforms. AR-10 platforms with lowers that accept an AR-15 cartridge can also safely fire the .458 HAM'R. [1][2][3]
It is very similar to the .458 SOCOM, specialized to operate at higher pressure, offering an increased range in a flatter trajectory. The cartridge uses an AR-15 sized magazine, but the cartridge pressures require a bolt, barrel, and receiver designed for the pressure of the AR-10 platform. [1][2][3]
Bill Wilson of Wilson Combat designed the cartridge.[1][3] The .458 HAM'R has a single sister cartridge under the HAM'R name, the .300 HAM'R, also designed by Wilson Combat.[4]
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Rebated rim (RB) cartridges
| |
|---|---|
| Pistol / carbine / PDW | .41 AE • .429 DE • .440 Cor-Bon • .475 Wildey Magnum • .50 AE • .50 GI • FN 5.7x28mm • HK 4.6×30mm |
| Rifle (intermediate & fully powered) | .276 Enfield • .284 Winchester • .30 Remington AR • .350 Legend • .375 SOCOM • .375 Swiss P • .400 Legend • .416 Hushpuppy • .425 Westley Richards • .45 Raptor • .450 Bushmaster • .458 HAM'R • .458 SOCOM • .45-70 Auto • .499 Leitner-Wise • .50 Beowulf • .50 Krater • .500 Jeffery • .502 Thunder Sabre • .505/.404 Stewart • .510 Beck • .585 Nyati • .600 Overkill • 6.5-284 Norma • 6.8 Western • 8×63mm patron m/32 • 8×68mm S • Nosler cartridges (22 • 26 • 27 • 28 • 30 • 33) • Remington Short Action Ultra Magnum (7mm • .300) • Remington Ultra Magnum (7mm • .300 • .338 • .375) • Winchester Short Magnum (.270 • 7mm • .300 • .325) • Winchester Super Short Magnum (.223 • .243 • .25) |
| Autocannon (20mm+) | 20x70mmRB • 20x72mmRB • 20×80mmRB • 20×101mmRB • 20×110mmRB • 20×128mmRB • 30×90mmRB • 30×92mmRB • 55×175mmRB |
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