Imr 4350

I see no recommended loads for 4350 for 223 on Hodgdon website and they have a huge number of loads listed.

Without consulting my loading books, I would say that 4350 is too slow for optimum performance with 55 gr. bullets in 223. Although the Mini-14 is not as sensitive to port pressure variations as a M-1, I would worry about using a powder as slow as 4350 for that reason.

Data http://www.stevespages.com/page8a.htm Old dupont data list IMR4350 in 223. Low pressure loading. Not a good choice, but may work???

The reason you can't find data is 4350 is way too slow a powder for use in the .223. You probably can't get enough of it in such a small case to produce acceptable performance. Some reloaders think it's even slow for loading the 30-06 although I use almost nothing else in the 30-06. I'm not sure the pressure curve will reliably cycle the action in a Mini14 either. There are SO MANY good powders for the .223 out there but 4350 just isn't one of them.

Too slow burning for. 223.

223? VARGET, VARGET, VARGET!! 3/4" 100 yard 5 shot groups is not bench rest accuracy, but from my ol' handi-rifle, I'll take it. 27 grains with 55 g v-max bullets in lc91 brass gets it for me.

Not trying to sound blunt, but save the 4350 for your '06 and find/pick something faster for your Mini14.

TAC, AA2230, H335, WW748, RL 7, Benchmark, both 4895's, AA2495, AA2015, X-terminator, RL12, RL10, IMR8208, many more in this general range on a burn rate chart.

Roger that. To many other better powder choices. Keep the 4350 for the -06.