For whitetailed deer, 150grns is about perfect, stout enough to deliver a "killer blow", but light enough to stay flat shooting.

My rifles prefer Winchester Supreme 150grn Ballistic Silvertips for accuracy, I can get huntable groups out to 600yrds with these, impressive for factory ammo...they're a very explosive bullet though, so they aren't really good for shots under 60yrds, at that range (or less) the bullet is travelling too quickly and you may experience severe bullet failure, I have, as have many others on this board.

Although they aren't as accurate, 2" groups at 100yrds avg., Winchester Super-X softpoints and Supreme powerpoints are great stoppers. They are typical whitetail bullets, awesome killers and accurate enough to do the job at typical hunting ranges...I've used these for years now, made 13 or 14 one shot stops with them on deer everywhere from 4yrds to 280yrds.

Rem Corelocts aren't worth the gas it costs to drive to buy them, let alone the sticker price on them (and they're pretty cheap-you get what you pay for or less with them). The bullet is a good design, but they don't fly straight and quality control is pretty pathetic, I noticed my accuracy was TERRIBLE with them, bad groups, keyholing, inconsistant groups, etc...I chrony'd a box, I had a range deviation of over 500fps!!!! It wasn't one VERY fast one and one VERY slow one either, they were pretty well spread out on that range evenly, it was ridiculous...I'll never hunt with them again, I'll only shoot them if I'm looking for some cheap plinking ammo, which I can reload for cheaper.