An explanation on barrel harmonics.

[Rman]

Is that a zero run out kazoo?

R.

[303carbine]

I have noticed that a lot of rifles shoot to a lower POI the faster the bullet is driven.
I did this experiment with a ton of factory and handloaded 303 ammo, the same bullets would shoot lower the faster the velocity.
When I reached the velocity that the military ammo shot then the POI was to point of aim.
I know its less scientific than some of the posts here, but it seems to work that way, at least with the 303 Brit for me.
I don't think the left hand twist of the Brit has any bearing, but who knows for sure.

[James 1]

Just removed the pressure points on my rem 700 7mmRM. We will see if it was the right thing to do. I will be working up a load hopefully this weekend. I will try and post my results here. Hopefully we will be able to see the results of barrle whip/hamonics and P.O.I.

[gitrdun]

Let us know how things work out James 1.