I use Winchester 748 for my winter loads in my 223. For Spring and summer I will use varget or VV N133. WIN 748 is a great powder but it is not has heat tollerant as Varget and VV N133. Hodgdons line of extream powder are more heat tollerent than their line of non extream powders.
I have found that threw the uniflow powder measure the ball powders meater very well. If you load like me I trickle all my rifle powders the ball powders are not as good as extruded for this.
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Solving Virginia's Ground Hog problems 50gr at a time.....
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