I will be starting with my first 408 hopefully soon using CE 425 laser’s and retumbo. I haven’t been successful at all in finding and form of starting load data. Any help would be appreciated.
Recommended Load Data for 408/419 gr. Solid Projectiles Projectile 419 gr. solid copper Powder RL-25 Max Load 131.5 grains Cartridge Overall Length 4.303 inches Primer Magnum Large Rifle Average Velocity 2,886 fps - 2,900 Recommended Load Data for 408/305 gr. Solid Projectiles...
Quickload suggests a bunch of powders in that range...
You might also try N565, which is fairly new and not as popular as N560 & N570 yet. A cursory look at the predictions say you could get similar 2800fps-ish performance with that bullet in a 28" barrel.
Wow, never heard of Quickload. Many thanks for that info. I have some of these powders already. Would be nice to find alternatives for sure. Many many thanks!!