Success! I did the lighter fluid. Went to range, made an adjustment and walked to 300 no problem.
Last night, in pouring rain, 10 mph wind, 350 yds, approx 30 degree decline, with bipods full extended, sitting, pack back under leg for support – dropped him with one shot. He is well over 340!

Thanks for the guidance and to both of you who helped make this happen – great rifle, great training. Would not have tried the shot without both.
– Jay Townsend