[svandamme]

for the most part velocity is good for 2 things

1 keep the heavy pills spinning
more velocity = more spin for the twist you have.

You can take a 1:12 . 308, and if you have a long barrel
and slow powder, you can get a better spin on the heavier pills where a shorter 1:12 barrel would just only marginally stabilze the bullet past certain distances.

Obviously if you have a 1:10 barrel, you can chop off and trade some of the velocity off, since you have the spin from the twist anyway.

2 to stretch out by keeping things supersonic
once the bullet slows down to transonic, weird **** happens.
So the more velocity at the muzzle, the further out you can stretch it.

Hence the 155 palma bullet was designed to keep subsonic with low twist at Palma ranges.


The story bout faster bullets having less problems with wind , I don't buy that.

Most people can't read wind well enough for it to matter. (I sure can't outside a fixed gallery range)

The bullet might need half a minute less windage at 900 yards if it goes a bit faster.
But whatever that gains, is wasted in poor wind reading anyway

He who can read the wind better doesn't care bout that 5% less wind sensitive bullet. from that hotter load...
As long as the ammo is consistent his wind reading at long range will be much more relevant.