djtjr
Well-Known Member
I own 6.5 WSMs to go fast. I have other 6.5s for close range or to go less fast. What Long Range Hunting Forum is about is long range performance. Note that proponents of H-1000, R-22 or R-17 (which is a modern Swiss powder but is just too fast for this case capacity) do not list the charge weights or velocities they are getting. I suspect that they have a lot of rattle room in the case and have not tried the newer tech powders like the VV N series (N-570), the Swiss NitroChemie (R-26) or Hodgdons Enduron (IMR -7977). These powders provide more velocity at lower pressures and that is why these distributors are trying to help us. We are fortunate that new technology is still being brought into a shrinking market of handloading. There is only one small arms powder plant left in the US and they make ball powder. Olin basically sold the plant to the employees. St Marks in Florida. We are the beneficiaries of Alliant (owned by Blackhawk) and Hodgdon. VihtaVuori sold last year to Lapua for a song and Hodgdon is now distributing IMR from Canada, Norma and VihtaVuori powders.
I started handloading with only surplus H-4831 and H-870 to work with in the .264 Win Mag. I did back flips when Reloader 22 was imported from Bufors. H-1000 was the next available. H-1000 got me to 3150 fps reliably and with great accuracy with 140 gr bullets in the .264 Win Mag. By the time Retumbo and R-25 became available, I was handloading the 6.5 WSM instead of the .264 Win Mag. Now the best performance is possible from R-26, N-570 or IMR 7977 in the WSM case. I am puzzled why MagPro does not go faster, it is the fastest powder I have found with 140 gr bullets in the .270 WSM. Ramshot Magnum seems to get as high a velocity as Retumbo but does not provide the same accuracy and I suspect that is because it is a ball powder.
While i am pretty impressed with the velocities i am getting from H-1000 wint eh 6.5WSM in both rifle and XP handgun format, i am not above trying to squeeze some more out of it. with the newer powders would you be willing to post some starting loads (and perhaps max) and their velocities so others can experiment? As we all know there is not a lot of info out on those powders and even less in these kinds of wildcats.