My smokless loads shooting paper patch worked the best when I backed the sizer out to only size .250-.300 of the case the expand and use the seater to seat the bullet. The bullet doesn't have alot holding it and if you can push it against the  table it will move but gives enough to make it  shoot better. What kind of rifle is it?

I am a fan of 4227 for cast loads in a range of rifle cartridges, but, as you have noted, it needs a crimp to get pressures to where it burns well and a crimp is not a good thing with paper patched bullets.

I have used IMR 3031 at mid jacketed data with 160 grs paper patched bullets and some success, but neither the Marlin 336 barrel not the H&R Handi barrels were ideal for PP bullets. I was getting jacketed velocities but I could never get accuracy down to consistent groups. I'd always have fliers. 

I also tried some aiMR3031 and paper patched 525 grs slicks in 45-70. I found loading them long, lightly lubing the paper with BP lube up to eventual seating depth and then using the lands to seat the bullet when chambering worked well, but it's a finnicky process and I am just much happier loading with Black Powder, compressing to seating depth and only taking the a light bell out of the case mouth with a taper ceimp.