I have been sticking to IMR-4895 because of the rifles DI design/short DI tube, and keep the velocity to just under 2400 fps (37 grains) with Privi 139gr FMJ/.263" bullets. No lubing of the cases and everything works fine as for functioning... Aside from the rifle being really, REALLY hard on brass.
This load results in nearly identical velocities to Privi with the same bullet, but I'd like to add just a bit more velocity to kinda clone M41 surplus, which should be around 2550 fps. I have read of one person who used 37 gr of RL15, and got about 2550 fps with a 140 gr FMJ, but I'm kinda scratching my head as to how, considering it's curve relative to IMR-4895. FWIW, the charge of whatever tubular propellant used in Swedish M41 ammo really fills the case, so it must be assumed is of a much slower curve than IMR-4895, which leaves a lot of empty space in my loads.
I'd like to use a propellant that is as 'fast' as possible to keep port pressures their lowest, while getting the velocity nearer 2550 fps. I may at some point try to regulate the gas system, but until then I'd like to hear from AG-42 loaders who have tried to achieve what I am looking for, especially with chronograph data... Please, this relates only to loading for an AG-42; I have, and can find all the data in the world for 6.5x55 loads well suited for older and modern bolt action rifles. Thanks.
This load results in nearly identical velocities to Privi with the same bullet, but I'd like to add just a bit more velocity to kinda clone M41 surplus, which should be around 2550 fps. I have read of one person who used 37 gr of RL15, and got about 2550 fps with a 140 gr FMJ, but I'm kinda scratching my head as to how, considering it's curve relative to IMR-4895. FWIW, the charge of whatever tubular propellant used in Swedish M41 ammo really fills the case, so it must be assumed is of a much slower curve than IMR-4895, which leaves a lot of empty space in my loads.
I'd like to use a propellant that is as 'fast' as possible to keep port pressures their lowest, while getting the velocity nearer 2550 fps. I may at some point try to regulate the gas system, but until then I'd like to hear from AG-42 loaders who have tried to achieve what I am looking for, especially with chronograph data... Please, this relates only to loading for an AG-42; I have, and can find all the data in the world for 6.5x55 loads well suited for older and modern bolt action rifles. Thanks.