I have been looking at the 750 for a few years, making sure it is what I would want and how it would fit in with my long-term hunting needs.
Here is a review from Rifle Shooter Mag...
http://www.rifleshootermag.com/featured_rifles/remingtonwood_052207/Compared to previous models it has a cleaner and more reliable gas system, which I think would be the price of entry - $620 synthetic delivered from Buds.
The most amount of crap you will read has to do with feeding. Here is what I found about fixing feeding issues. If this fix does not work, send it back.
Short actions Remington Semi-Autos have less reported feed issues than the long-action. Model 750 feeding issues likely has been factory fixed or can be fixed by this example below.
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2007-02-27, 02:27 PM
Perhaps my Remington auto experience may help (folks) having feeding problems.
Around 15 years ago I traded a Winchester 670 for a Remington 742, and the guy told me the 742 jammed which it did with bullet nose jamming into feed ramp only on right side of magazine. Using pliers and a handkerchief to avoid scratching magazine, I bent upward on magazine lip enough to allow rounds to pop up at greater angle and feed properly with no more jams in 15 years.
Recently I purchased a 750 in 35 Whelen which had the opposite problem, i.e. rounds were popping up at too great an angle resulting in jam into top of chamber only on right side of magazine. Using same procedure of 15 years ago but bending inward on magazine lip until proper feed angle was achieved resulted in flawless feed for the new rifle.
Note manual cycle of rounds from magazine is necessary to easily identify the problem which may be undetectable by actual firing. This procedure may not help all, but it should help where this magazine flaw is the culprit. BTW I've had a Remington model 4 in 308 for about 10 years which has never had any problem, and all things considered I like Remington autos. Incidentally I shoot only handloads in all centerfires including the autos in case anybody's interested.
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Good luck.