PuntoQuatroCinco wrote:I've always understood the "weight / twist" relationship as such:RECIT wrote:1:7 likes the heavier bullets like 62grn-72grn.
As your bullet gets heavier (thus longer), you have to spin it faster to stabilize it. Therefore, the heavier bullets perform better in the 1:7 barrels.
But I didn't think you lost anything by exceeding the twist rate necessary to stabilize the bullet (assuming you're not disintegrating it). I think he'd be fine using 55 grain bullets in a 1:7 barrel. Surely "overspinning" is not as critical to accuracy as "underspinning."
Let me know if I'm missing something....and I'm not trying to be a know-it-all; just don't want anybody to take a bath trading away 2k rounds of suitable ammo.
PQC.
You had it right in the term of stabilization. Too fast or too slow is still unstable. Just like a football, you can throw it spinning slow or fast and it can still be unstable. When you release it just right and you get that really tight spiral is what the gun does every shot. In this experiment the barrel is the control and the ammo is the variable. Opposite in the football reference. Football being the control and the human arm/weather being the variable.
