.223: Varget 27.2 gr, CCI #41, 55 gr LC projectile

[mizer67]

How full is the case with 27+ grains of Varget? Full to the top?

On Lake City brass, 27 grains of varget comes up typically to the start of the case neck. It's a compressed load.

[30 cal slut]

Trimming the cases to 1.750 inch is not the cause of case stretching. Normal resizing can make the brass longer, and it can also occur when pushing the shoulder back too far during the resizing process and firing the cartridge later. The brass has to go somewhere when squeezed down in the die, so it will show up in the length. I always check length and trim after resizing. Neck sizing and firing the cartridge in the same rifle chamber, such as in a bolt gun, will negate most trimming needs.

I personally found the Varget sweet spot for 55 grain bullets to be 26.5 grs., and that charge weight fills the case quite full. Have you noticed any powder compression during bullet seating?

i trim and check after sizing as well.

iirc, the case is quite full with 27.2 grs. borderline copressed imo.