McLernon,
I am having the same problems with my 750 35W carbine. Every three rounds or so it jams. I've tried different brands of ammo, grinding down the scope mount screws, synthetic lubricants, a custom 35 W small base die, etc. and it still jams. This gun is not reliable and will not go to Maine with me 11/1.
I have 20 + Remington guns and I have always been a fan of Remington products. I am VERY DISSAPOINTED in this gun/product. I haven't heard anyone who is not having issues with the 750 jamming.
Where I hunt (in Maine) you may get one shot at a decent buck (if you are lucky) a season. Often this shot is at a running deer. In theory, this 750 would be the ultimate rifle for me. In reality, I may as well carry a single shot.
AGAIN, I AM VERY FRUSTRATED WITH THIS GUN AND REMINGTON. IT WILL BE GOING BACK TO THE FACTORY!!