vit 133-223.55gr sp +40gr blitz kings data

robert1666

Well-Known Member
I'm looking for a load for my 223 with 40gr siera blitz kings with the vit 133 any one got a receipe they swear by?Also I've been using 55gr soft.points with 23gr of vit 133 I'm looking to tighten up my shots anyone use more or less of this powder looking to experiment to see if I can get my bullet grouping tighter?
 
What length and twist rate?

I found that my 24" 1..9 twist grouped very well with N130 and 40grn anything, but noticeably not as good with N133.

It shoots 55grn SP very well with N133, but it is a little sensitive to seating depth, and anything over 40 thou back and the groups opened up. Best results were at 15 thou off the lands.
 
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