RCBS bullet seater die problem

bentrod · November 7, 2007, 09:03 AM

My seater die is hanging a bullet near the tip; this leaves a small ring on the bullet where it is hanging up. I get a little crunching sound when the bullet slips off what ever it is hanging on. The seater die for my other rifle (Lee) does not do this. What is happening here?

bentrod

lONGARM · November 7, 2007, 01:21 PM

My LEE dies also leave that ring near the point where it looks as tho it "dug in" and crimped/cut the bullet jackets making the ring s around 3/16" down from the points.

A friend has RCBS Dies that do it also.

I wondered if they were "not smooth", up inside? I have a couple of LEE dies that DON"T do it also.
I was not too worried about them tho, since I reload just to shoot "my own" ,and NOT for "High-accuracy competition".(MY reloads are quite accurate and shoot better than all of the "Factory" loads I have tried!

) It does bother me a little that they are distorting the Jackets and I'd like to know what is neccessary to fix it. If I have to live with it ~ so be it ,I guess. :barf: Longarm

**Unclenick** · November 7, 2007, 03:27 PM

The taper of the bullet and seater don't match, so your bullet is being seated by the edge of the seater, leaving the ring mark. It does no damage, unless it is grossly extreme. A lot of experiments have been done filing bullet tips to see the effect on ballistics, and they turn out to withstand a good bit of torture before the effect is obvious at normal ranges.

Make sure your cases are adequately chamfered. Use a dry inside neck lube when sizing. A little will remain to assist with seating. If you are unfamiliar with case neck lubes, just pour a shallow dish 1/4" deep with powdered graphite and poke your lubed cases down into it just before sizing. This gets a thin layer of the graphite inside the case neck. Other options are available.

November 7, 2007, 09:03 AM	#1
bentrod Member Join Date: August 4, 2007 Location: Michigan Posts: 34	RCBS bullet seater die problem My seater die is hanging a bullet near the tip; this leaves a small ring on the bullet where it is hanging up. I get a little crunching sound when the bullet slips off what ever it is hanging on. The seater die for my other rifle (Lee) does not do this. What is happening here? bentrod

November 7, 2007, 01:21 PM	#2
lONGARM Junior Member Join Date: November 7, 2007 Location: Missouri,in my room, by the electrical outlet strips. Posts: 1	LEE also leaves ring near tip My LEE dies also leave that ring near the point where it looks as tho it "dug in" and crimped/cut the bullet jackets making the ring s around 3/16" down from the points. A friend has RCBS Dies that do it also. I wondered if they were "not smooth", up inside? I have a couple of LEE dies that DON"T do it also. I was not too worried about them tho, since I reload just to shoot "my own" ,and NOT for "High-accuracy competition".(MY reloads are quite accurate and shoot better than all of the "Factory" loads I have tried! ) It does bother me a little that they are distorting the Jackets and I'd like to know what is neccessary to fix it. If I have to live with it ~ so be it ,I guess. :barf: Longarm

November 7, 2007, 03:27 PM	#3
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,063	The taper of the bullet and seater don't match, so your bullet is being seated by the edge of the seater, leaving the ring mark. It does no damage, unless it is grossly extreme. A lot of experiments have been done filing bullet tips to see the effect on ballistics, and they turn out to withstand a good bit of torture before the effect is obvious at normal ranges. Make sure your cases are adequately chamfered. Use a dry inside neck lube when sizing. A little will remain to assist with seating. If you are unfamiliar with case neck lubes, just pour a shallow dish 1/4" deep with powdered graphite and poke your lubed cases down into it just before sizing. This gets a thin layer of the graphite inside the case neck. Other options are available. __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle