Adding a few data points. Went out again this morning to try a few more loads including some with RL-17. Velocities are average of four shots.
Hornady 75 ELD
34.0 RL-15 / 3191 fps. This one shows promise at this weight. Good accuracy and 3200 is about as much as you can expect from RL-15.
36.0 H4350 / 3096 fps. Still a bit slower but very accurate.
36.0 RL-17 / 3147 fps
37.0 RL-17 / 3228 fps
38.0 RL-17 / 3330 fps. Hornady shows a max of 37.9 gr. at the 3300 fps increment so this is right in line with their data. Good safe, max load.
Hornady 88 ELD
34.5 H4350 / 2914 fps - based on one shot. Put a supposedly new battery in the Oehler 35 but it died after the first shot. Didn't notice that until the end of the string. Replaced it with the other battery in the 2-pack and it lasted through the rest of the session.
32.0 RL-17 / 2698 fps
33.0 RL-17 / 2809 fps
34.0 RL-17 / 2899 fps - this is right at my target of 2900. Need to play with seating depth a bit for best accuracy but it looks promising.
Gunnery, gunnery, gunnery.
Hit the target, all else is twaddle!
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