https://load-data.nosler.com/load-da...250-remington/

I tend to double check with nosler as often a bit more generous than Viht, if you are getting 1 1/4" i don't think changing COAL will dramatically reduce it, it may improve it but I'd be looking at a different bullet or if you want to stick with that bullet then try primer and powder.

FWIW the 50 gr v-max out of my 1:14 .223 AI is an awesome bullet and hammers foxes out to sensible ranges.