At a local shop the other day, and noticed they had some powder in stock. I usually use IMR4350 for my 270 Winchester, but am currently down to about a 1/4 pound left and haven’t seen any on the shelves for months. I saw they had IMR4955 and figured I’d give it a try. Does anyone have any personal experience with 4955 and loading for a 270 Winchester? Looking to work up a load with the Hornady 130 grain SST. Hornady does not list this powder in their manual, I contacted them and they said they have not tested with it-yet. I checked the Sierra manual for their 130 SPBT, and they have it listed with 45 minimum and 54.8 max as the extremes. Hodgdon has it listed as 55.8 minimum and 61.0 max compressed. I contacted Hodgdon about the rather large discrepancy and the only thing they sent back to me was was the load data I already had from their website. No explanation as to why data could be so different. I understand powder/bullet companies generally aren’t the same as far as published loads, but they generally are close. This does not seem to be the case with this powder which has me concerned as to where to even start safely. There are some conflicting reviews online which doesn’t help either. Hoping some of you may have experience with the 4955 “enduron” powder.
Would be using Winchester cases and CCI 250 primers.
Thanks,
Would be using Winchester cases and CCI 250 primers.
Thanks,