[Roger N]

I recently loaded some BTB 0.432 290 LFNGC for a 444 using Marshall's tried and true load of 57 gr H335, WLRP and Remington brass with a COL of 2.54". The load is compressed and I am having trouble getting a consistent COL, it appears that the case tension is not sufficient to hold the bullet in place. I am seeing variances as much as 0.015". The dies are RCBS and I am expanding just enough to get the gas check started. Crimping is with the Lee Factory Crimp Die.  Any ideas?

 

[Roger N]

I measured the expander on my RCBS dies and it is 0.427" and I can also see the case bulge after expanding. Is the expander too large? I am using an unmodified nose punch, what is the procedure for the modification?

I used the same remedy as Bill M in reseating the bullet several times and measuring each cartridge to get the correct OAL. Anything over 2.50" will not consistiently feed through my 94 Timber Carbine. Thanks