No. Minor difference, may be adapted to fit. Sights from the 740 would be a closer match. Check with Remington Customer Service- but the model 74 was only made for a very few years.
Dividing by ten just take a 0 off the end - so 7400 becomes 740 as in 7400 / 10 = 740 seven hundred and forty
The 742 is a 740 semi auto with the feeding problems fixed. Made from mid 1950's until it was replaced with the 7400.
The Remington Model 740 semi-automatic rifle has long been out-of-production. You may be able to find an original stock on one of the firearms auction sites, like Auction Arms.com, or you might try ebay. Consider that the later model rifle stocks, like the 742, 7400 and 74 Express stocks will also fit, but will not match the 740 Model forearm pattern.
remington 740 fieldmaster . 30-06 caliber rifle
If you are referring to the magazine latch style from the Remington Model 7400, yes it can be used on the Remington Model 740, but you'll also need to use the spring that goes with the newer style. These latches (newer style) are available in varying heights numbering from 0 thru 5 so you'll need to make sure the right height/size is chosen to get correct cartridge feed in your rifle.
7400 mm, because there are 10 mm/cm
The Remington model 740 was the first semi-auto rifle chambered in 30-06,and was made from 1955-1959.The Remington model 742 was the next design and made from 1960-1980.I believe that the difference might be the gas piston,and the way the bolt locked up in the chamber(more bolt lugs).
You will have to contact Remington.
1 cm = 10 mm so 740 cm = 7400 mm. Simple!
the 740 is a very old model, they sell for $250- $350 in this area
It will vary with caliber.