The Firing Line Forums - View Single Post - Causes for variable OAL in Dillon 550b press (9mm)

**Unclenick** · November 9, 2010, 09:41 PM

Demigod,

Pick up several reloaded rounds. Take a look at the slight bulge in the brass where it comes up over the base of the bullet, then rotate the rounds. If that bulge is even all the way around, then your bullets are in straight. If not, if, for example, you see the bulge on one side but not the other, which is pretty common, they are slightly angled into the case. This is target shooter level of picky, looking to help keep a match gun within a couple of inches at 50 yards.

He is belling the cases just fine. Some bullet bases don't stay upright very well on the smooth convex radius of the bell.

November 9, 2010, 09:41 PM	#8
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,061	Demigod, Pick up several reloaded rounds. Take a look at the slight bulge in the brass where it comes up over the base of the bullet, then rotate the rounds. If that bulge is even all the way around, then your bullets are in straight. If not, if, for example, you see the bulge on one side but not the other, which is pretty common, they are slightly angled into the case. This is target shooter level of picky, looking to help keep a match gun within a couple of inches at 50 yards. He is belling the cases just fine. Some bullet bases don't stay upright very well on the smooth convex radius of the bell. __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle