Quick question to those of you with some back ground on this cartridge. I've noticed that essentially all data that I can find online and in manuals is for either a 60gr Hornady, 75gr Speer, or 86-87gr cast of SP bullets. My question is, is there any reason why someone couldn't load up some more modern bullets like a 75gr Vmax if you were single loading into a bolt action and weren't worried about mag space? Just seems to leave a lot on the table just using those old school bullet designs.