After quite a bit of fine tuning (seemed like 3-4x what it takes me to set up for revolver loads), I think I got it. Basically OAL for these LRN's have to be ALOT shorter than on the FMJ's. Thankyou all for your suggestions!
OAL for my FMJ loads are app: 1.156
OAL for these LRN loads were app: 1.109 - considerably shorter... So off to the range tomorrow over lunch to see how they perform.