280AI data

Finally got around to chono few loads. Rifle, Rem action, 27" Lilja 1/9 twist barrel, Peterson brass, R-26, long throated. I used Nosler data for 175grABLR. My start load was 55.5/R-26 @2715fps, book load was 2697fps and I worked up to max 59.5/R-26 @2941fps. Its hunting rifle so 3 shot groups 1/2" 100yd and just under 1" 200yd.

Co DOW has rifle range about same elevation 7700ft as I live but it's in same game unit I hunt so makes good place to test loads. I'll take few shot around 10K and decide.

That will be like a laser at that elevation.

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That's an impressive load. It will definitely hammer elk.

JD338

Ain’t nothing wrong with that combo. The 175’s are working excellent on paper from the Mashburn at 3072….

That’s impressive performance with a 175gr bullet. The 280 AI provides service far beyond what most would think. Your gettin 7RM velocity with that 175 with 8 grains less powder. I’m getting great accuracy and acceptable velocity with 175gr ELD-X (3003 fps) from a 26” barreled 7RM charged with RL25. RL26 is giving me 3150 fps with 130gr E-Tips from a 270 Win. Great load work up. Sounds like you have a “do it all” rifle. Congratulations.