Originally Posted By: skidooracer_99Im having a heck of a time getting my gun to shoot these with varget. nosler manual says varget gives the best results with these i must be doing somethign way off. i was using an OAL of 2.710 which is the max. is that maybe too long for this round??
First group I ever shot with the 70's and Varget was a cloverleaf @ 100 yards. 40.5, with a Rem 9 1/2 primer and a short OAL (I want to say 2.625 maybe). I found another sweet spot then up around 41.7 grains, but to improve consistency I ended up having to slide out to about 2.690.
Going strictly from memory now, and with the cob webs of the holidays where I haven't done any loading in too long - if you think about this, 2.690 makes some sense for the 70 BT's. I recall those being about .904 in length. Rule of thumb says to tuck the diameter of your bullet inside the case neck. So .904-.243=.661 sticking out + trim length of the brass (2.035)=2.696, right? Anyway, every gun is different. If I was just punching paper, I'd be shooting 40.5 but I plan to still try some other powders myself. I want to see loads that come together toward the upper end of the velocity curve, without putting myself in any danger zone of course too. I think my next move on the 70's will be with 4064. Good luck and let us know what you find that works for yours.
