J-Bar
Member
You are really downloading the cartridge. Every chronographed that load? And, what lead to this? When the 270 Win came out in the 1920's, one selling point was that it was faster than the 30-06 and thus, flatter shooting.
My reason for downloading is a deteriorating right shoulder. Factory .270 loads have become uncomfortable. Where I hunt shots are usually less than 100 yards, never over 200 yards, so the usual practice of zeroing a couple of inches high at 100 yards still allows me to put the crosshairs on the target without having to worry about excess drop. Cutting the bullet weight from 150 to 110 grains made a difference, and the lighter powder charge made it even more comfortable. H4895 was the choice because it can be downloaded to 60% of the maximum charge for a given bullet weight. From Hodgdon's online data, the maximum charge of H4895 for a 110 grain bullet in the .270 Winchester is 47.5 grains. 60% of 47.5 is 28.5 grains, so I'm loading 1 grain above the chart minimum.
(Link to Hodgdon's reference for downloading with H4895:
https://imrpowder.com/wp-content/uploads/2016/11/h4895-reduced-rifle-loads.pdf)
I don't own a chronograph. My reference on the comparison to the 6.8 SPC was taken from Hodgdon's 2018 Annual Manual, which shows the same bullet, Hornady 110 grain V-Max, over 29.0 grains of the same powder, H4895, producing a muzzle velocity of 2550 fps with 42,400 psi. So I guessed my load is probably in the same ballpark. Both deer confirmed it as best they could, falling over in their tracks.
I still carry a couple of rounds of factory 150 grain cartridges in the field, in case a trophy shows up at longer range. I know where they hit in relation to my zero with the lighter load. I love the .270 Winchester because it gives me such a range of options.