If it's new it should have included a manual that will tell you what kind of projectiles and powder you can use in it. If it isn't new it wouldn't hurt to write Remington and request a copy of the manual.
I'd be extremely surprised if they recommend against using the pellets, though. A different question to ask is whether or not your game laws allow the use of pellets. Here in Colorado they do not.
We all take every precaution when we are hunting and harvesting our animal. Well, what about after the animal is down? Do we know what has happened to that animal over it's lifetime? The following is an example of why we should be careful when we cut.
2 years ago, my father shot a nice 8 point on opening morning of the rifle season in Vermont. It was a beautiful, 2 1/2 year old deer, looked really healthy and moved normally. When my father went to skin it for...