I have had a Nielsen MN300 for many years. In a vintage Robertson synthetic stock. Original barrel was set back. Eventually rebarreled it with a Schneider barrel. TR - Target Rifle class - Central rear sight. Drilled and tapped it so it could be shot F(TR). Last time I had it out shot a 5/8" group at 100m with generic TR ammunition. .308 Winchester cases, CCI primers, 46gr Varget, 155SMK.
The Nielsen is an interesting action. Evolved out of the Nielsen adapter which enabled Sportco rifles to be rebarreled with other than proprietary Sportco barrels. Two piece receiver. Uses 3 lug Sportco bolt head. If you ever considered making a target rifle action, study a Nielsen. Possible to do in a good home machine shop.
I wouldn't cut the barrel. The long TR barrel is a really easy way to get the most velocity out of a .308.