.40 col with speer 165gr

legion277

Member
EE Expired
Rating - 100%
13   0   1
Location
Manitoba
hey all currently working up a load for my p320 full size sig
lee manual stateds min col 1.25 for my speer tmj 165 gr
i see variations from about .005
i use 4 die lee carbide set
im thinking its the bullet but not sure my lyman manual say min is 1.200 should i be worried now that im 2 grains from max most of my rounds are spot on at 1.270 but some differ?
my lowest is 1.118
imput appreciated :)
 
seat the bullet so it feeds reliably in your gun, start low and work up. Doesn't matter what the book says for OAL, it's just a guide to get you started. For plinking loads i just seat to the cannalure (if there is one) or seat it so it fits in the mag and feeds good.
 
Back
Top Bottom