Reloading Q: .451 but crushed casing?

[andytoshif]

I'm using .45 acp on a four-stage Dillon (square b model) and have reloaded about 1000 rounds without much of a hitch. I ran out of bullets, though, and bought some speer .451 185 gr gold dots--but with these, the casings are crushed 19 times out of 20.

Any suggestions on what may be going on?

Thanks in advance!

[mazama]

On pistol cases i bell case mouth enough to start bullet,i take bullet and see how it starts in hand,some bullets have taper so you don't have to bell as much.

[andytoshif]

What do you use to bell them? The machine I use is supposed to resize the casing on the first cycle.

I wonder if Speer bullets are less tapered than the previous ones I used (don't know what mfr--I bought them at a gun show).

[Huntbear]

If you have a 3 die set, it should be in there to bell the cases.  I bell all my .44 mag cases, before seating bullets.  Just works a lot easier.