The Firing Line Forums - View Single Post - Savage Mark II 22LR - Scope needs to be zeroed with different ammo

Picher · January 7, 2018, 07:06 AM

Although different ammo types tend to hit at slightly different places, sometimes the rifle is to blame. If the barrel is fully free-floated, it tends to place groups from various ammo velocities in a vertical direction. However, if the barrel is touching the barrel channel, the impact change could be greater and in more of a diagonal direction.

I like my barrels to be at least 1/16" clear of the channel, especially near the forend tip. Sandpaper wrapped in a dowel and worked back and forth can increase clearance.

January 7, 2018, 07:06 AM	#14
Picher Senior Member Join Date: December 14, 2004 Location: Maine Posts: 3,695	Although different ammo types tend to hit at slightly different places, sometimes the rifle is to blame. If the barrel is fully free-floated, it tends to place groups from various ammo velocities in a vertical direction. However, if the barrel is touching the barrel channel, the impact change could be greater and in more of a diagonal direction. I like my barrels to be at least 1/16" clear of the channel, especially near the forend tip. Sandpaper wrapped in a dowel and worked back and forth can increase clearance.