My Sako 270win. shoots great @ 100yds1.5 to 2.5 groups.Move back to 200yds. & they are flying all over, I'm using speer gs &56grains of IMR7828,what gives?

Big Don:
If your Sako 270 only shoots 1.5 to 2.5 inch groups at 100 yards I would suggest that you work on some load development to tighten those 100 yard groups first.

Are you shooting factory ammo or reloading your own. I had a new Remington 243 that shot 1.5" at 100 yards with factory Remington ammo but worked up reloads were .5" and less.

Keep us informed.

I would agree , your 100 yard groups are in my book unacceptable, I shoot a savage 110 270 with IMR 4895 powder and 130 grain nosler ballistic tip boat tail bullets. Well within the 1 inch group if I do my part.

Stick with the 150 grainers but come off of the 7828. Try working up a load with IMR-4350. Works great in my 270 with 150s.

I like 130 grainers and IMR4895 .3 shot Groups less than 3/4 at 100