Very Nicely Done! What happens if you back the screws out half way? Have you tried using a 300 grain bullet and speeding them up? That would give you less barrel time and should bring them closer together. How fast do you think you want the 350 grain bullets to run? You may have to adjust the front spacer after all. It is a pain in the ass, I KNOW, but it may be necessary. I have found that if you make up a C clamp with rounded cut outs on the bottom jaw and the screw pad, that you can sometime apply pressure to the front or back of the front spacer and heat it till the solder softens, then let it cool while under pressure. That is SOMETIMES enough to move the POI enough to get the job done without the necessity of rebluing.