yes, i see that now. i cast up about 70 yesterday (figuring i will get 50 good ones or so), and the hollow base wall is heavier than i had anticipated. i found the actual trail boss data page, and tried loading up one round (none of the bullets are sized or lubed yet, so i just hand lubed one). i started seating the bullet to the 2nd groove from the top, and it was way to long. it would not even chamber. so i pushed it in to the top of the top groove, and it is still to long ( 2.617" ), which will chamber, but will NOT cycle thru the action. so now i have a problem i was not thinking about. as i see it, i have several choices. 1) hand load them one at a time into the chamber to shoot them. 2) shorten up some brass and keep it for exclusive use with these bullets and probably have to buy a second factory crimp die, and modify it for these rounds. and modify the load data for less case volume. 3) try to make up a jig to shorten the nose of the bullet after they are cast. or 4) have the mold cut down (which will make them a flat nose rather than a round nose)(and who knows what that will do for stability) so i can use them as cast. none of them seem like a great choice. well, as i am typing this i thought of one more possibility, seat them deeper, and try to get the factory crimp die to crimp further down on the case where there is a groove in the bullet. which will also reduce case volume, so modify the load data as well. i have no idea if i will be able to do that or not. i did think of just seating them @ 2.550" and crimping the bullet into the nose of the bullet. but being this has a tubular magazine, i am certain that would fail at the first firing. if not sooner. its ALWAYS something, isn't it?! grrrrr