I bought some of the Barnes 6mm 58grn varmintators for my .243 and dont know how to go about loading them. what if I load them acording to the hornady 58grn vmax data?

Barnes has been known at time to be slow on loading data. The bullets i,m sure are a differnt length. I really don,t think you will have any problem with doing that. Both of them are the same weight,just seat them at the same as you do your v-max. They will work ok. This way you won,t have to change your die setting. van. What are you shooting that you need that bullet?

I'd be crossreferencing any 60-70 grain data. Could see where the "max" accuracy loads for a 70 grainer fit in with some of the 60 grain data. I can't believe you wouldn't be safe using a top end 70 grain load. Then work up from there. Or start in the middle of 60 grain data and work from there.
Also....have you tried to e-mail barnes. I've emailed them about data for the tsx's and they've gotten back great data sheets within a couple of hours of my intitial e mail.

What are you shooting that you need that bullet?

I tryed some of the same bullet in 72 grn and they shot very good so thought I would try the lighter ones.

have you tried to e-mail barnes

they will be closed untill 1/2 and I was wanting to load some up and shoot this weekend.