Ordered 2 lbs of Re#33 today. I have the 105gr Hybrids . I wonder how fast they'll shoot out of my 30"Brux 8"twist ?
Love the discussion all.. I am loading a 257WM as we speak and find RL33 interesting as well as having a few #'s. I was working with RL22. I have not fired any yet out of my rifle, but did load a cartridge with 82 grains and a 110 grain Hammer to see how compressed it was and if the bullet would move. I did a light crimp and will see how it goes.. AZ, how was the accuracy with the RL 33 in the 257? Many thanks GMCQ10-7-2012 Continuing with RL-33:
257 Weatherby moly 110 accubond:
83 3625 which slightly faster than old load with RL-25
83.5 3674 fps shot well two shots were same velocity
84 gr 3704 fps shot well two shots were same velocity
84.5 gr 3735 slight signs of pressure on one case of four this is max case capacity with drop tube
This makes a 91 fps gain over a max load of RL-25
6mm-284 non moly Berger target hybrid
worked up to 64.5 gr which showed slight lift with very tiny shiny spot on case head from Rem 700's ejector hole. (This is with 8 times fired lapua brass)
62.5 gr 3376
63 gr 3414
63.5 gr 3453
64 gr 3485 fps excellent accuracy
64.5 gr 3535 a bit warm max case capacity using drop tube
Old velocity with Retumbo was 3307 which was the highest charge of powder without pressure issues. RL-33 yielded a 178 fps increase!
I will be replacing the 6mm-284 load if it continues to work well in the next few shooting sessions. Ditto for the 257.
I look forward to hearing on what others get with similar over bore cases like the 7 RUM, 257 STW, 6.5-300 weatherby, and many of Kirby's magnums.
No, N570 is much slower than any cut of IMR 7828. BTW IMR 7828 ,it's my go to powder for my 257WBYN-570 is a lot like IMR7828 prior to the short cut version.
I'd have to try something besides a VLD most likely. It pushes them too hard. It will shoot 150gr Nosler BT's over 4000fps. I think it was pushing 210's over 3400fps last time I tried.