RE: Handloads vs Factory Loads.
There has been times where I cannot duplicate factory loads. I am on my 4th powder with my STW, and still can't get the long range accuracy I got with Fed 160gr accubonds. Close, but no cigar.
I get 2MOA accuracy at 100 yards with my 460Smith pistol with factory 200gr, I get 3 to 3.5MOA best I can do with reloads.
Just keep trying to find it. Its a fun process.