Hello. This is my first post on the forum but have lurked here often.

I am looking for some advise.

I would like to make my go-to rifle a wee bit better?

I have M70 action that has a Hart stainless barrel chambered in 280 AI. McMillan stock. Shoots very well and has about 600 rounds through it. It currently has a 25 inch barrel.

It is a light rifle now but it would be easier to handle at altitude and backpack with a shorter barrel.

What could go wrong having it cut to 24 or maybe 23"?

Runs 160 accubonds at 2840 or so and less than 1 MOA past 300. I don't want to give up much velocity. With powders and bullets I have tested, accurate loads are usually at the top of the Hodgdon manual, can take more without any pressure signs but have always stopped at the high end of the Nosler guide (seems like another node right past there though).

Anyone have an idea how much 1 - 2 inches in length would change velocity or charge where the accuracy node would be? It's a #3 contour barrel if I remember.

Leaving it alone is an option too.

Thanks