pitted bore wrote:wildcatter wrote:FYI... with my personal side crimp and an enertia bullet puller and against a big heavy chunk of steel, takes 8/10, high hard swings to pull the bullet. Factory rds take 3/4 swings. Very un-scientific but, a good indicator of what's going on..
T-
Thanks for trying the experiment I suggested. It confirms something I've suspected - that your method applies a crimp that really locks bullets into the cases. I don't think I'm going to make much further progress with the 185-grain bullets until I can do something similar.
--Bob
Show-nuff Doc, A.K.A., Bad Bob, for you to progress, the side crimp and the 185's are the trick. I did a bunch of development for that bullet in the 45 Pro and 1680 powder, way slower than even 296, I've seen "Lab Speeds" I do not want to quote here. (PM, me and I'll tell ya). Even though we are seeing data far different from the pro and powders quite faster than I'm used too, the 185's should be working really well by now, I suspect that it's the taper crimp that is the major culprit.
Something for you guys, about the LeGendre Side Crimp.. The Lee Factory Crimp Die has a crimp length of about .125". I make mine about half or even less of that. I do it by chucking up the collet and cutting the factory crimp flange back (about .020" or so) from the top of the collet and then trimming the die body and collet back sufficiently enough to cause a very heavy, buy narrow crimp groove, on the outside of the case. After I side crimp I do a light taper crimp as a final step, to make sure there is no flaring that can slow feeding in a dirty chamber.
This Side Crimp is so good and even way better than the std roll crimp, AND, without any of the associated problems that a roll crimp can cause, that I suspect that one day our side crimp will become the std protocol for SAMMI, and then used by all the ammo manufactures, On All Cartridges..
As soon as I can get this pressure equipment on line, I'll do a test, someone here suggested, and I forget who it was, but I'll pressure/speed check the factory loads and then from the same lot, I'll side crimp the factory fodder and re-analogize the data string. Should give us some real good stuff to chew on..