I just worked up my first predator loads for my Marlin XS7 .243. I used once-fired Win. premium nickel plated cases, CCI 200 LR primers, 34 grs. RL 15 and Hornady 80 gr. FMJ bullets.
I chose RL 15 because it's on the low end of the velocity range for an 80 gr. bullet. The .243 Win. is capable of pushing an 80 gr. bullet to nearly 3500 fps., but I wanted to minimize pelt damage. The powder charge I used is just a half grain above the minimum, and should be around 2950 - 3000 fps. That's also the reason I chose an FMJ bullet. I can't wait to see how they perform.
Have any of you used a similar recipe for predators?