case prep for bottle necked pistol cartridges

[spradley]

For those who reload cartridges such as 357 Sig, 9X25 Dillon, 40 Super etc..

Do you prep your brass similar to rifle brass and chamfer the inside mouth or do you bell like with straight walled cases?

Seems the brass is much thinner so would not support inside chamfering.

Just curious..

thanks

 

[leadbullet]

Just bell the mouth enough to get the bullet started, no need to chamfer the mouth at all.

 

[FTC]

Just bell the mouth enough to get the bullet started, no need to chamfer the mouth at all.

+1. 9x25 was quite the learning process when I got started.

 

[spradley]

+1. 9x25 was quite the learning process when I got started.

Thanks.. the 9X25 is what I load for and seems to be fairly picky on case prep.

Gary

 

[FTC]

Lyman M die to expand the case necks worked for me. Seems that the Dillon sizer squeezes down the neck a little too much. Still tough to get the bullets lined up straight. Nickel cases don't hold up long either if they even make it thru the first sizing.

 

[spradley]

Lyman M die to expand the case necks worked for me. Seems that the Dillon sizer squeezes down the neck a little too much. Still tough to get the bullets lined up straight. Nickel cases don't hold up long either if they even make it thru the first sizing.

Did you just use the 9mm M die? Thanks for that info.. I may give it a shot.

 

[FTC]

Yes, the 9mm Lyman M die

 

[spradley]

Yes, the 9mm Lyman M die

thank you.. got that and the 40 cal die on order as well. I have similar issues with the 40 super but not quite as bad as the 9X25

Gary