I been having fun with my 222m conversion from 223 with Rem700 factory bbl 26"12 twist
the present best groups are in the .260-.407 range with H4198, lt32 and 2015
velocities in the 3475-3500fps with 50bk seem to be the sweet spot
my question is h4198 seems to vary lot to lot for me, my 2015 is 10 years old, only the lt32 is new,
have any of you had success with h322 or rl 10x is similar cases ? if I stock up I would like to pick the best of current mfg.
say 223 /223ai or 222 - I am not sure it is worth buying a lb of each just to find they are uky.
Bob
the present best groups are in the .260-.407 range with H4198, lt32 and 2015
velocities in the 3475-3500fps with 50bk seem to be the sweet spot
my question is h4198 seems to vary lot to lot for me, my 2015 is 10 years old, only the lt32 is new,
have any of you had success with h322 or rl 10x is similar cases ? if I stock up I would like to pick the best of current mfg.
say 223 /223ai or 222 - I am not sure it is worth buying a lb of each just to find they are uky.
Bob
I will however say that RL10x works real well in three of my rifles ...204, 20 Practical, and my 223. I would not hesitate to use it in a 222. It does seem to be a bit dirty though but like any powders ya just clean your rifles after shooting. I have heard as I'm sure you have too that H-322 was or still is the powder to use in the 222. I don't think you could go wrong with either powder though for your 222. Oh and thanks for the LT32 report...I have not had a chance to try any of that powder yet but intend to. 
