If you had to choose between Mk262 and Mk318......

[ABNAK]

....which would it be? I know the Mk318 is better at barrier penetration but the 77gr SMK at 5.56mm NATO pressures is supposedly better in the "anti-personnel" aspect. So if you had to choose one of them for a "stash" purchase, with all circumstances being taken into consideration (lethality pitted against barrier penetration), which would it be?

[Eagle1*]

556 77gr for more rounds and weight savings for transport. I do like the 318, but for an all around battle round, I would opt for the 556 due to the weight savings but that is me..

[Koshinn]

556 77gr for more rounds and weight savings for transport. I do like the 318, but for an all around battle round, I would opt for the 556 due to the weight savings but that is me..

So you're saying you'd take the mk318 for the weight savings as it's 62 gr vs the 77gr mk262? Those 0.03 lbs saved per magazine probably don't matter.

[mack7.62]

That choice should be driven by expected target engagement range.

[sinister]

I'm trying to shoot people, not cinderblock or thatched walls, trees and bushes, furniture and drywall, etc.

If I can see him I can hit him. If I can hit him I can kill him.

If I can't see him but I need to destroy or penetrate what's between us and I want to blind-penetrate (hence the name) then I want something bigger -- like 7.62 or bigger fed by belts.

[vicious_cb]

I'm trying to shoot people, not cinderblock or thatched walls, trees and bushes, furniture and drywall, etc.

If I can see him I can hit him. If I can hit him I can kill him.

If I can't see him but I need to destroy or penetrate what's between us and I want to blind-penetrate (hence the name) then I want something bigger -- like 7.62 or bigger fed by belts.

This. Take the SME's advice and define your requirements. At what range do you intend to shoot at? Do you have the gun,glass and skill to take advantage of the mk262's capability? What barriers do you think you will encounter? Perhaps you're better off with a barrier blind soft point for CONUS use if auto glass is a primary barrier?

[ABNAK]

I'm trying to shoot people, not cinderblock or thatched walls, trees and bushes, furniture and drywall, etc.

If I can see him I can hit him. If I can hit him I can kill him.

If I can't see him but I need to destroy or penetrate what's between us and I want to blind-penetrate (hence the name) then I want something bigger -- like 7.62 or bigger fed by belts.

Points taken. Thanks.

[TehLlama]

If I can't see him but I need to destroy or penetrate what's between us and I want to blind-penetrate (hence the name) then I want something bigger -- like 7.62 or bigger fed by belts.

It is a good problem to have - but Sinister nailed it. Even good barrier blind 5.56 loads are still middling at best on the other side of intermediate barriers; so I'd rather have the slightly better deformation on impact and precision capabilities of a match round in most situations. A trickier comparison would be 70gr TTSX based loads against Mk262, in which case the former starts to become arguably more attractive.

[Ironman8]

I'm trying to shoot people, not cinderblock or thatched walls, trees and bushes, furniture and drywall, etc.

If I can see him I can hit him. If I can hit him I can kill him.

If I can't see him but I need to destroy or penetrate what's between us and I want to blind-penetrate (hence the name) then I want something bigger -- like 7.62 or bigger fed by belts.

This is a pretty interesting thought process.

So if I wanted to standardize ammo across a "light precision" rig (1-4x scoped CL barrel rig meant for 400 and in) and a close quarters rig (suppressed 11.5"), would I be better off staying with OTM? For CONUS threats, yes there's auto glass and doors to contend with, but that's pretty much the only barrier that I would see a significant advantage in staying with bonded SP...but when you put enough rounds through auto glass, it becomes less and less of a barrier to contend with. Typical sheetrock constructed walls in houses these days don't stop much from going through them, bonded or not. Thoughts?

[Eagle1*]

So you're saying you'd take the mk318 for the weight savings as it's 62 gr vs the 77gr mk262? Those 0.03 lbs saved per magazine probably don't matter.

im an idiot, thought you meant the 308/556 comparison. still would take the 77 grn..