Yeah I know, I didn't ask the price before bringing to the till.
Enduron powders are supposed to be insensitive to temperature change, it is small kernels( kinda like short cut extruded) and has anti copper fouling additives.
The 4166 has a burn rate in the Varget range. I bought it because I've never tried it before. Might work up good hunting loads in 308 and 223 for November/December seasons.
Oh yeah, I saw the same powder for $28.89 on US sites. FFS!