Hey fellas,thanx for the replies,I was wondering if my posts were getting through there for a while. These are valid points and I will look into his twist rate.A bit of history,he just picked up the rifle and his first loads were Hornady 325 FTX factory.I then loaded him a box of 300 gr TSX (I was surprised at the "openness" of that particular tip an am amazed that they fly at all). But he loved them and recovered some bullets,they REALLY expand.He is one of those guys who will not be satisfied till he shoots the biggest bullet possible from that rifle. So we are working our way up to the 535 handcast bullets.So , all that said,he has provided me with brass and a box of these 450gr TSX,but data,(charge,powder and coal) is elusive. I am not actually a fan of pushing these Barnes multiple canellure bullets.I shoot them in my .308 Norma mag and find that you really have to lean on the press to seat them,and with the .45-70 they even want to bulge the case a bit.The 300gr loads (IMR 3031) are a compressed load,found that out right away.But,long story short,they all chambered and fired well,he was happy.As for different bullets,I do appreciate the options you have provided me and will inquire,but out here in the sticks we are at the mercy of our local gun shop and basically take what we can get off his shelves,usually quite paltry pickins.If you guys have access to some data for the 450gr I would love to give them a try and see what they do,not to mention that he is chomping at the bit too.lol. Well,I have long day of high elevation Mule deer hunting tomorrow,so lots of prep today.Thans guys,cheers.........Paul.