You have not mentioned if you plan to reload for it, as long as you shoot factory ammunition your function will be 100%, however, if you start reloading you may have issues.
These pump rifles don’t have the strong cocking and seating cams that are on bolt rifles. Sloppy reloads will cause issues with failure to go in battery or failure to extract.
You will need to full length resize your brass and you need to set up your dies with cartridge case headspace gages.
Pictured are Wilson type, there are a number of other vendors. Someone posted that Dillion gages are stainless, rustfree is a better way to go in my opinion.
If you notice, this is the difference between Go and No Go, about 0.006", you will never get there by setting up your dies by the “touch the shell holder and add a quarter turn” advice given by many reloaders or in the instructions that come with dies.
Wisner’s has interesting observations on the Remington Pump Rifles and the gas guns.
http://www.wisnersinc.com/additional_info/Remington_760.htm
http://www.wisnersinc.com/additional_info/Remington_7407427400.htm
I would follow the advice given in the 7400 section about keeping your chamber clean and using small base dies for reloads. If you use small base dies you have to use a good sizing lubricant, such as Imperial Sizing wax or RCBS water soluble. Spray on lubes will stick the case in the die.
