I used IMR 4198 back in the '80's & '90's then had been using H322 for 15+ years. I think back in 2018-ish Midway USA had a deal on Accurate/Ramshot powders with free shipping & hazmat if you bought over $100 or 8# of it. I got some Accurate 2015 because their components in their .222 data was exactly what i use (Rem 7 1/2, WW case, Hornady 50gr. SPSX). Started with the max load in my Rem 722 and it came in right on the money to their stated velocity of 3213 fps and is as accurate as 4198/H322.