The o8 is capable for elk out past 500 one of the guys I hunt with usees one and he has killed bulls at 625 yrds with it of those bullets listed I'd try the lrx with either super performance or staball if your gun likes them another option is nosler e tipsJust trying to solicit some opinions on an elk load for my 7mm08 with stuff I've got on hand. I'd love to be able to shoot out to 500 with this gun, but understand that is pushing it with an 08.
Gun:
Tikka T3x Compact. 1:9.5 twist, 20" barrel
Powder's I Own:
Hodgdon Superformance Hodgdon H4350 IMR 4350 RamShot Big Game RamShot Hunter RamShot Magnum Winchester StaBall 6.5
Bullet's I Own:
Bullet Make Bullet Model Grain BC Barnes TTSX-BT 150 0.408 Barnes LRX 145 0.486 Hornady CX 150 0.455