bedding a seating stem

[BUSTINDOGS]

I have a custom die from CH4D and the seating stem leaves a ring around the bullet when seating the 7mm 195 Berger's. I was thinking about indicating it in, in the lathe and cutting the inside to better fit that bullet... when I light bulb went on, and I thought I should bed the bullet into the stem.
Has any one ever done this?

 

[Gord0]

I bedded my stem on my forster micrometer for my 300 win mag. I did it with the die completely assembled just barely seating the bullet into the case. That way it would hold everything in line. Used devcon 10110. It seats more consistently now and just feels better doing it too. Make sure you fill the hollow point and then go in with a drill larger than the meplat so you don't have it damaging any that are slightly inconsistent.

 

[DUSTY NOGGIN]

if a guy were to take a seated dummy round and make it as concentric as he could ( maybe even lathe up a all copper berger clone) and use that for your seat jig -- ink it and check seater plug it for full diameter contact , or as much contact as you can - maybe cutting the seater to match , or do your bedding with with it
as i have seen some dies threads , when seating , be out of time due to thread tolerances ( only seat contentric , at 6 'oclock while being off a few thousands at 12 oclock ) if you just indicate off the seater plug it may not be concentric with the die --


the problem is the shape of the bergers, being so long , alot of seaters dont match that high taper and only press at one corner of their angle

 

[Geno1112]

I have done that; made a dummy round, spun it for concentricity and put a little JB on the upper half of bullet and turn it by hand.

 

[bozman]

I understand this is an old thread.
Is anybody still doing this or are there better options?
I am have a issue with my Forster micro seating die. It is leaving a ring on my 195 EOL Bergers for my 7PRC.
I belive that Forster has all ready put their bench rest seater in this micro seating die already. Thanks for the help.

 

[crashlanding]

I had the issue with a Whidden bullet seating die they sent with the sizing die for a 7prc, it was fine with 180 hybrid bergers but when I used it with Hornady 175 eldx on the down stroke of the press it would actually snap as the seater was grabbing the bullet, left a noticeable ring. I contacted Whidden, their response was the die was milled for a 168 Berger vld, if I wanted a seater for the 175 eldx, send a bullet in and they would make one for a fee of course. My solution was I bought a seater stem for the 180 hybrid from Whidden and leave it set for that purpose, with the Hornady 175 eldx, I switched over to seating with a frankford arsenal universal seating die which is working very well for that application. I never thought of bedding but it actually sounds like a pretty good idea.

 

[sedancowboy]

Aa trick I use is to simply use a bullet shaped cratex and polish the inside of the seating stem.

CRATEX REPLACEMENT BULLET POINTS | Brownells

Check out CRATEX REPLACEMENT BULLET POINTS | Brownells available Online at Brownells Today and many more Abrasives & Polishing products are available in our Tools & Cleaning Department.

www.brownells.com

 

[Varmint Hunter]

The easy button:

Remove the seater stem from the die. Chuck up a bullet in a drill/driver. Put ring lapping compound, or other similar compound, on the bullet nose and run it in & out of the seater stem a few times. Refresh the compound on the bullet and run it in again. This should help match the inside of your stem with the angle of the bullet at the contact point and reduce the ring it puts on the bullet when seating.

You may want to try this out and test a few times until things are good enough to avoid the problem you are having.

 

[bozman]

I may have to give this a go! Thanks

 

[M1A1ABRAMS]

Frankford Arsenal Universal Bullet Seater Die

SCHEELS.com

duckduckgo.com