Yup, this is a common problem with the Load-All. Even with birdshot, you're not going to get an absolutely perfect crimp. You will, however, get the base sized; and that's a plus not always available on a lot of higher priced shotshell loaders. Improvise a little. Suggest you try using #’s 4 through 0. I've, also, found that the shell has to be perfectly lined up; and you need to, both, start the crimp and exert a slow heavy pressure on the handle in order to get a decent crimp while using the Load-All.
Remember that not all hulls are the same length. I don’t think I’d use red, ‘AA’ for buckshot. Try to, ‘nest’ the buckshot in, ‘layers’ as you build the shell. A buffering compound is a good safety precaution to use in order to prevent, ‘jamming’ in the choke area of the barrel. (You may, also, be able to get away with a slightly thinner wad if you use buffered shot.) Watch the overall height of the column as you add in each layer of buckshot. Remember to leave room for the crimp at the top. I haven’t checked recently; but, I think there’s something in the Lee literature about the difficulty of loading 00 buck. I’ll admit I haven’t loaded buckshot in awhile, now; but, if you’re careful and experienced with this great little shotshell loader, it CAN be done; and you WILL produce usable shells.
Here a thread from the old, ‘Firing Line’:
http://www.thefiringline.com/forums/archive/index.php/t-142294.html
