lands

Is there any difference in whether a port should be located in the land or groove of a barrels rifling? Furthermore, I've been advised that a port that has been located in a portion of rifling that bisects a land AND a groove has no effect on accuracy... True/False? I Google'd it up and there...

I am trying to measure for the lands of my rifle. When I insert a dummy round , I get "what looks to be 4 or 5 dirt marks around the bullet, is this the lands contacting the round? And if I want to be .010 from the lands do I use this mark as a reference. Thanks, Lance

I just got a 338 lapua and its shooting a 3" group at 600 yards. when I got it used factory loads to zero it and sight her in now at home I took the COAL measuements and there shorter and the factor loads I was using bu .020 so the rifle was shooting lights out with the bullet jammed into the...

Confusion? 0.20 into the lands. Does this means the ogive of the bullet is pushed 0.20 in to and cutting into the barrel rifling? I load off the ogive of the bullet,but its always been 0.20,0.10,0.05 before the ogive or is touching the lands, but never push into and I asume cutting into the...

I am trying to use the Stoney point tool to measure when the bullet ogive touches the lands on my factory .308 rifle. I am following the suggestion in the instructions and using a .25" wooden dowel down the muzzle end so I can move the bullet back and forth with the plastic rod on the tool and...

Hello. I am reloading 308 and I want to know how far from lands should I give bullet. (distance between bullet and lands)