I also run RL-26 in a 243 with 105/108gr bullets. at about 0.7 under book max I'm running just over 3000 fps, did test up to book max but I had my heart set on achieving 3000 fps so I did not need the little extra.
next step is to see if 115gr bullets will stabilize in my 1:8 barrel. may have to single feed them as I'm about as long as I can go in my HS mags.
Z
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