I have had two M100s, both in .284, and kept the carbine in .284Win. I have only put 5 boxes(100rds) through it in 20 years. No jams. Not sure what winchester did to accomodate the shorter barrel and gas impulse difference in the carbine versus rifle. Sometimes reducing barrel lenght with same size gas hole will cause short stroking.
I'm wondering if gas piston corrosion may be a culprit in these being caused by neglect because of the difficulty in access and in cleaning these parts. A corroded piston in this type closed system would be a bastard.
I always thought the gas system was similar to my M-14, which can be readily cleaned.
One thing I will say about the M100. When it comes to balance, appearance, it has the Remington beat. I love my M7400 as well but as already stated it is like a club compared to the perfect balance of the M100.
Everywhere I read of Remingtons jamming. I have owned several since 1983 and have zero issues with the design either, but being a direct gas system there is no piston to corrode or foul.
As L'il surfer stated, there is no high demand for these but a small following. I can see .308 Rifle in excellent+ condition going for475-575, but I would ant to pay only 500 max..
The carbines are more desirable to the following, with the .284 being the rarest of the rare with only 917 made drom 1967-1971.
I traded my M100 .284 Rifle several years ago, and was alotted 625$ on trade. It was mint.
Again 95 % were in .308, so a .243 or .284 will bring a little higher prices. If it's a carbine snap it up. You won't be disappointed.
