What caliber (not cartridge) is best for short barreled rifles when shooting heavy bullets?

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The Guide

The Guide

WKR
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Now it sounds like it could be the 7mm Backcountry.
If that technology correlates to other cartridges in standard actions, it really could be a game changer. If we look at the 30-06 with a 18" barrel losing 200 fps from a 24" barrel and still being a 550 yard rifle at sea level but but the new case design gives an additional 200 fps then your a 675 yard gun at sea level. Take that to 5k feet and you go from being a 650 yard rifle to an 800 yard rifle. If this technology translates to other cartridges it will make short barrels common and suppressor use easy.

Jay
 

TheGDog

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Well, I've seen a couple vids on the new 7mm Backcountry, and the whole idea behind it is they use that newer ?HSV? steel-cases to get higher chamber pressures of like 80,000K psi rather than the typical 65,000 for a big game cartridge.

The intention is to cater to those who like hunting with suppressor and want a shorter barrel length, but don't want to have to give up soo much velocity to get it. And I wanna say with like 18" I think it was? It got like 29##fps.

And obviously they have lots of projectiles to choose from for that one since the 7mm Rem Mag has been around a while.
 
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