RE: Innerbond, CorLoct, SST, Remington, Hornady: differnce is?
JMO but none of the bullets you mentioned I'd use for elk, so if your wanting to find only one load from pigs up to elk then personally i'd be looking at the likes of Nosler Partitions, Nosler Accubond, Hornady interbond, Barnes TSX, etc. You did say occasional in terms of elk so if not needing a premium bullet for this year just pick the one you like best and hopefully your rifle agrees. Repeat the process until you find the bestload.
Another JMO but I think the Hornady Interlock within its designis slightly more robust then the corelokt. I have found the interlock pretty easy to get shooting in a host of rifles and I would use it on an elk hunt in a pinch though still prefer the other "premiums" I mention above.