Thanks for that. Will try a half dozen rounds each at minimum (43gn of Australian ADI AR2209), plus half and one grain over. (And even then I'm still 4 grains below max, so not anticipating any pressure problems.)
Update: Worked a treat. No pressure problems and groups were shrinking as the loads went up, so will try more half-grain increments.
Last edited by pathdoc; 06-06-2009 at 05:44 AM.
Reason: Further information
It doesn't seem to be a big deal if I seat the bullets past the groove. I have some pulled 0.311" bullets with cannelures that are all too long to seat in the groove for both my 0.303 Brit and 7.62X54R. They seem to be quite accurate in both calibers even when I crimp them past the groove.
People think I'm paranoid because I own guns. If I own guns, what do I have to be paranoid about?
Past the groove is not so much an issue as seating them with the groove out of the case. Am I likely to run into trouble there? The cannelure is well back, and would interfere with seating the bullet near the lands. Then again. with a .303 I may not be able to get it near the lands in the first place and still keep within magazine limitations. Not so much of a worry for target work, because one has to single-load anyway, but Service rifle competition has magazine-feed applications where it might be an issue.
I thought the cannelure was there for the mouth of the case to crimp into. In other words, I seat the bullet to where the mouth of the case is in the middle of the cannelure groove, then crimp the case into the groove. Incorrect?
Ever feel like the world's a tuxedo, and you're a pair of brown shoes? - George Gobel
I loaded some 8x56r with resized 225gr bullets I resized to .329. When seated at the cannelure the bullet would be pushed deeper into the case when chambered, so I just seated them all deeper. No problems. I was using a Starting load so I wasn't worried about over pressure. They shot better than surplus but are under pressured. Some primers were backed just a tad. I did not crimp but I will try crimping some of the same load and see what happens.
rondog....it would be nice to seat them on the band but if i'm seating them according to the lands then sometimes the cannalure isn't close.thats the cool thing about a lee factory die...... i don't need a cannalure to produce a quality crimp. besides there have been times when you buy a bullet for reloading and it may or may not have a crimp as compared to a factory round of the exact same calibre and wieght. and there are times that if you go by the books on load volume that if you were to seat a bullet ( say my pet load of 58 grs. H4350 under a 165 gr hornady sst), it would pretty much turn into a compressed load, especially if i bumped it up to 59 grains max..
but yes....if your using a roll or taper crimp you must use the cannalure for crimping purposes. that avoids crushing the bullet out of round unless you very gently apply a slight crimp( all manufacturers recommend this and altho they don't dump on lee they won't come out and say yes you can use a lee crimp on thier noncannalure bullets)