The only data of mine that I can find right now is 46.8 gr of H110 Fed 210 m primer Hornady 200 FTX, 2800FPS it hurts. I settled on a load with 250 FTX at 2400 FPS ,can't find the data right now. Found it 44.0 H110,CCI200 primer,250Horn FTX 2400FPS.
I thought I should check chamber throat length to select a cartridge overall length before building ladder loads.
My .460 Katahdin barrel has such a long throat that a 250 gr FTX won't hit the lands when barely seated in the case. Looks like one could seat a bullet for rifle use at least .375 " longer than the pistol maximum coal of 2.300.
ChuckK, did you record the COAL for your 44.0 H110 loads?
As for powder, I am using Lil'Gun. Based on comments from Freedom Arms (burning top straps), I was hesitant to use it but this powder has become the go to powder for the 450 Bushmaster and there is no reported damage I have heard of. I decided to try it and I'm getting 2652 fps out of a 22" barrel. Accuracy hovers at about MOA. The most accurate powder have used is Accurate 5744, but I do not get the velocity.