Are you sure it was a 1-9 or that it was suppose to be.Ordering a 1/8 28 nosler barrel. My one .284 bad experience was with a 280ai in 1/9. It shoots 150s great but I really wanted to shoot 168s and it cant shoot them at all
The 1/8 recommendation sounds good to me
I've shot alot of 180 Bergers out of 9's and they shot just fine.