The 740 is a slide action rifle, so I assume that you operate the action smartly to promote proper function. What is the nature of the jam?
1) Spent cartridge not removed from the chamber - extractor system failure
2) Spent cartridge not tossed out of the rifle - ejector failure
3) Cartridge won't feed into empty chamber - magazine alignment failure.I must add that the Remington model 740 is actually a semi-auto gas feed magazine rifle.I would seriously consider that the rifles gas system(piston,and gas tube could be built up with carbon!)This would require that the rifle be taken apart and the gas system be cleaned,so the rifle may function properly.
You will have to contact Remington.
www.cabelas.com www.cheaperthandirt.com proably eBay
the 740 is a very old model, they sell for $250- $350 in this area
Impossible to answer without the sn or date codes.
its worth about $180 its worth about $180
After the bolt carrier is removed, the pin is driven straight down to remove.
Yes, I also have a Remington 244. I haven't it shot it in years but it used to work great with Winchester 6mm cartridges. Seemed to jam more with Remington for some odd reason.
100-500
You can't shoot reloads in the 742 or it will jam. My guess is they expand just enough to jam. When I first got mine 18 years ago I had the same problem. Since then I only shoot with new shells.
remington 740 fieldmaster . 30-06 caliber rifle
Contact Remington on their web site. Your question is impossible to answer without the caliber of the rifle
http://remingtonsociety.com/rsa/questions/barrelcodes