I just put a TRADER KEITH sling on my M77 .458 and like it very much. It is wide cotton canvas type constuction with leather ends and bridle keepers for 1" swivels. It has rubberized strips woven into the material to keep it from sliding around. I recommend it especially for double rifles and heavy bolt action guns. Most fixed sling attachment points are for 1" slings so if your rifle has those this sling is compatible. NECG has a nice one too.