N-133 in 20Vartarg

[Orofinobob]

I am going to work up some initial loads for a 20vt with 24" barrel.Have 4198 and Reloader 7 on hand that I know are ok.Also have some N-133 as my 6mmbr preferred others. Would n-133 be too slow or worth a try? Thanks for any input.

 

[garyw]

BOB 40 vmax start at 18.5 of n133 go up in 0.3 incremants to 19.5, max at about 19.8.you will lose approx 150-200 fps versus 4198.FWIW REL10 AINT BAD EITHER.
LET US KNOW HOW YOU DO.
garyw