>>1616795First things first: Why .460 Rowland in an AR? It's a cartridge that attempts to get rifle-like ballistics out of a pistol...so using a really stout pistol caliber in a rifle accomplishes what compared to just using a rifle cartridge in that same rifle?
>muh energyDue to how energy works, pretty much any rifle caliber that'd fit in an AR, all the way down to .17 Fireball, will have more energy.
>muh pistol tier recoilDoesn't work that way. A 9x19 AR shooting standard 124gr NATO-pressure loads already has similar perceived recoil to a same-weight AR shooting 62gr NATO-pressure 5.56. A .460 Rowland would be quite a bit stouter. Heavy bullets=more felt recoil, even at lower pressures/velocities.
>muh penetrationA potentially valid argument, but you'd be giving up ammo versatility to get there. The Rowland is already on the verge of turning normal defensive hollowpoints so far inside-out they don't get their full effect due to the added velocity from a 5" barrel, the extra couple hundred fps you'd get from a 16" barrel means you'd have to go to something like a DPX or XTP-Mag designed for the .460 Smith or .454, and those are designed to penetrate 12-15" before stopping, which may be insufficient against big animals. Shooting FMJ's would buy you the penetration needed at the cost of pretty much all your wound channel, and still have similar or even inferior penetration to something like a .300blk with heavy subs and definitely inferior to a .338Whisper Mk2.
Personal opinion, from a guy that likes playing with oddball calibers in an AR? For killing things stick with 5.56 and 60gr+ bonded softpoints. Federal LE 62gr or Speer Gold Dot 64gr are fucking awesome. It'll weigh less, kick less, have much longer effective range, be more devastating on big animals, and won't blow up small animals due to how far they have to penetrate before they start to expand.
>>1616820M193/M855/mk262 poke .22cal holes in them. Varmint bullets turn them into paste.
