1911in9mm Posted February 13, 2022 Share Posted February 13, 2022 Only problem I've had with taper crimps is loading .355 bullets. No matter how hard a crimp I used, I did get bullet set back. To my experience, crimp has very little to do with preventing bullet set back. That’s a function with a properly adjusted, in spec sizing die giving proper case neck tension that holds the vast majority of the tension on the bullets. And over crimping can actually lower case neck tension. I’m wondering if maybe your die adjustment isn’t a little out of sorts. Or possibly over flaring the case mouth, after sizing. Link to comment Share on other sites More sharing options...
xrayfk05 Posted February 13, 2022 Share Posted February 13, 2022 7 hours ago, Bobkoh said: Only problem I've had with taper crimps is loading .355 bullets. No matter how hard a crimp I used, I did get bullet set back. Either incorrectly sized cases, cases with very thin walls, too much crimp or short bullets loading a bit long. Crimp wont' fix this and I absolutely hate FCDs for straight wall cartridges, if you _need_ one something is not right. U-die may help but shouldn't be needed either. What headstamps are you loading? Link to comment Share on other sites More sharing options...
ranger Posted February 13, 2022 Share Posted February 13, 2022 I use Lee dies on my Dillon 550 to load 9mm and everything else. I use the Lee "U" dies and the FCD also. Link to comment Share on other sites More sharing options...
Sinister4 Posted February 13, 2022 Share Posted February 13, 2022 (edited) Lee undersize die and FCD done deal, works for any brass, load or bullet weight......load away zero issues Edited February 13, 2022 by Sinister4 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now