Do I have a bedding issue? Where do I start?

[Rumpelhardt]

I shot my no.4 for the first time today. At 100 yards it seems to want to string the shots horizontally about 6 inches. vertically they stay within 3 inches. It did this with both174 and 180 grain Privi ammo. Could this be a bedding issue or more likely me? I shot my .308 as well and kept all rounds within the usual 1/2 to 3/4 inch but that was through a scope set at 12x.
Thanks in advance for your thoughts and opinions.

Information

Warning: This is a relatively older thread This discussion is older than 360 days. Some information contained in it may no longer be current.