How big of groups are you getting?
My family has around 8 model 70 270s.
The best ones shoot around 3/4 inch 3 shot groups at 100 yards consistently.
The worst ones around 1-1/4 inch 3 shot group at 100 yards.
For factory ammo Federal 130 power shok or fusion is usually pretty decent.
Hornady ammo is usually the worst.
If you reload at all, hammer hunter 116 with h4350 has cut every single one of these rifles groups in half.
Most are under a half inch at 100 yards.
Here's my model 70 stainless featherweight with 116 grain hammers at 100 yards