Wouldn't doubt if this 88gr turns out to kill well. However, the sheer mass & bearing surface precludes even super large capacity .224 Cal's from pushing them fast enough to maximize flat trajectory...
Simply stated, any given .224cal is gonna push a 75-80gr fast enough, to where they're the 'better' ballistic mousetrap. And, since several flavors of ~75s are already well proven to kill like hammers of Thor, I question the practical decision of going heavier, in the first place? Beyond the fun of experimenting, that is?
Case in point. Against my better judgement, have a friend who I've allowed to build a .220 Redline on a 1:8, and he wants to try these 88s (amongst others). Tried in earnest to talk him outta it, as I honestly feel the combo is gonna fall on it's face & blow up bullets before they fly fast enough to be worth it.
~3700fps from a 1:8 is rockin' over 333,000RPM, and I bet my Redline would push an 88 that fast, with relative ease. BUT, that is not gonna be jacket friendly! Bullet shredderator, if ya ask me!
So, if ya gotta slow down in order to keep a bullet in one piece, then...POOF...there goes the ballistic advantage that a monster case capacity is posta allow for! So, again, what's the point?
Reckon sometimes ya gotta let people find things out the hard way, so I wished him good luck! But ain't holdin' ma breath...
Naturally, smaller capacity .224s may not run into these 'extreme' stability/integrity issues, but they'll still very likely push a lighter bullet fast enough to make them a (ballistically) superior option, than a super heavy for cal. projo...
Runs some #s for yourselves, and you'll get the jist...