chamber reamer clearance on proj

Get or give advice on equipment, reloading and other technical issues.

Moderator: Mod

bruce moulds
Posts: 2900
Joined: Sun Jun 19, 2005 4:07 pm
Has thanked: 413 times
Been thanked: 330 times

chamber reamer clearance on proj

Post by bruce moulds »

say proj =0.243 or 0.284 etc.
is chamber better reamed to 0.243 etc, or 0.244. for the job we are doing?
also for other cals?
bruce.
Tony Z
Posts: 202
Joined: Tue Aug 23, 2005 8:02 am

Post by Tony Z »

edited 20/4/06
Last edited by Tony Z on Thu Apr 20, 2006 12:00 am, edited 1 time in total.
bruce moulds
Posts: 2900
Joined: Sun Jun 19, 2005 4:07 pm
Has thanked: 413 times
Been thanked: 330 times

Post by bruce moulds »

thanks tony.
can ther be too little clearance between the pill the throat?
bruce
Tony Z
Posts: 202
Joined: Tue Aug 23, 2005 8:02 am

Post by Tony Z »

edited 20/4/06
Last edited by Tony Z on Thu Apr 20, 2006 12:00 am, edited 1 time in total.
RDavies
Posts: 2336
Joined: Sun Feb 12, 2006 7:23 pm
Location: Singleton NSW
Has thanked: 715 times
Been thanked: 760 times

Post by RDavies »

Is this measurement you are talking about the throat diameter? I know the throat on the 308 barrel you (Tony Z) took off my 308 must have had a very tight throat. If I didnt have much neck tension ,the tight thoat would push the bullet back in the case . For the first year I shot this chamber ,I thought the lands were .100" further back than they actualy were ,its just that the bullets stopped when they hit the very tight throat. When I gave one bullet an extra hard push ,it went in another .100" to the lands. As I use very little neck tension and use the lands to do the final seating (in my BR cases),would .001 or .0005 throat clearnace be better?
Post Reply Previous topicNext topic