I would say, take care,
even though most Hodgdon (who now own IMR) powders are made in Australia by ADI (Thales).
Earlier this year, ADI (Thales) in Australia advised the following;
"With regard to reloading using ADI Sporting powders. Please find an equivalence table for ADI and Hogdon propellants.
These propellants are identical.
It should be noted that while IMR is part of Hodgdon, IMR and Hodgdon powders are not necessarily the same powder.
So H4227 is the identical powder to AR2205,
but IMR4227 cannot be assumed to be identical. Extreme caution should be taken and loads should be worked up accordingly. Refer to our website at
www.adi-powders.com.au or our 5th edition handloaders’ guide for more information, warnings and reloading safety."
ADI Powder - Hodgdon
Trail Boss - Trail Boss
AS30N - Clays
AS50N - International
AP70N - Universal
AR2205 - H4227
AR2207 - H4198
AR2219 - H322
BM2 - Benchmark
AR2206H - H4895
AR2208 - Varget
AR2209 - H4350
AR2213H / AR2213SC - H4831 / H4831SC
AR2217 - H1000
AR2225 - Retumbo
AR2218 - H50BMG
(I believe that some IMR powder containers are marked 'Made in Australia,
but I've never used any IMR stuff.)
I use ADI's AR2206H (equivalent to Hodgdon H4895)
and AR2205 (equivalent to Hodgdon H4227),
and use the same tables, (as guidelines) where I need to,
but I, as ever, rely on my own results and experiences, with my own equipment, rather than some one elses !!!
I also use Hodgdons Lil'Gun in my .22Hornet with great success.
cheers,
SS