chamber reamer clearance on proj

[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]

edited 20/4/06

[bruce moulds]

thanks tony.
can ther be too little clearance between the pill the throat?
bruce

[Tony Z]

edited 20/4/06

[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?