I have 76 rounds down the pipe in my new 264 win. with the 8-7 transitional twist, it has been nearly all I hoped it would be. I ended up buying a barrel worth of the 160g Matrix VLD. I settled in at 3,070fps with an SD of 7. Not quite what I hoped it would be, but I heavily favor accuracy over velocity. I loaded another hundred FPS faster before I found a slight hitch in primary extraction. Those faster loads just don’t have the single digit SD that I expect and search for. Accuracy of every load at the preferred seating depth is 0.75 MOA or better. I zeroed it at 200 and it takes 5.5 MILS in my SWFA fixed 20 to get to 1,000 yards. The 160 carries so much more momentum at 1,000 it just crushes the steel compared to the 140 Berger or the 143 ELDX. 156g berger probably won’t see this barrel, but I will be working with it in my 6.5/06. I’m pretty pleased.
Haven't shot it a terrible amount to be honest, somewhere aroumd 100 rounds so far is all
Yes I have, sorry I forgot to update this post!!Any results? I just got some of these and have H1000 and IMR7977 to work with in my 264.
I've been running RL 33 in my 264 mag for about a year and half. The dirty didn't bother me. I was used to it. Because I've been running RL 17 in one of my 260's for few years. Love the velocity of both.My personal findings with RL33 in the 264 was it’ll give real good velocity, but it’s a pretty dirty powder, and it seemed especially so in the smaller bore of the 264.
Here was the load I was working on:
74 gr RL33
147 gr Hornady ELDM
BTO 2.767” .010” J