I have a 7600 in 35 Whelen like kk Alaska's but I've never taken it out to hunt with because it rattles. Not sure if that is something I can address or not. I've heard there is an o-ring that can be replaced but the slide rails also have play in them. They pivot a little. Is that normal for these rifles?
GL--first thing to check, make sure the screw at the front of the forearm is
tight.
The "0" ring is easily replaced. Take the old one out and go to a hardware store--plumbing dept and get a new one.
I've hunted with many Remington pumps all my life. Only had one that developed a rattle and it just needed to have the forearm screw tightened.
