No effect on accuracy.....I have always favored putting my front sling swivel on the end of the forend cap, although the factory started suggesting using the barrel band swivel mount on later Remington 760's..I guess the forend tube is not as sturdy on the later models and if you were to (for example) crawl throught brush, with the rifle slung to your back, and the barrel got caught, you could bend the tube and ruin the "pumping" characteristics of the rifle.