No a SCOPE is not necessary but it helps.
No they are Smoothboar.
It has an 11mm dove tail mount. Yes it is scopeable
Do you mean FPS? If so, then it's rated at 595 FPS.
Definetly the pump master. It is a multi pump gun so the fps depends on the number of pumps.
Crosman has both the owners manual and parts manual online. See the link below and download your 760 parts manual. Then contact Crosman customer service and order the parts. Everything is on the opening home page for Crosman at the bottom of the page.
Ten.
If you are asking about a Crosman Model 760, I suggest you go to the Crosman home page and click on "Download an Owners manual". Crosman still offers the manual on the rifle and not only will you see how to load it but you will also learn other features about the rifle.
To find what you need to add to 760 to make 1000, you can subtract 760 from 1000. 1000 - 760 = 240. Therefore, you need to add 240 to 760 to make 1000.
760 is divisible by 10, so does not need to be rounded.
Crosman has all their Air gun manuals online see the link below and find your model. The list has both the Owners Manual and Parts Manual.
You first need to remove the fore arm and then the barrel needs to be removed from the receiver. The bolt will then come out the front of the receiver.
I'm not sure what the question was but Remington called the 141 it's replacement the 760 "The Gamemaster". Both slide (pump) action center-file rifles. The 141 was made from 1935-1950 (Approximately 78,000) in 30,32,35 Remington. The 760 was made from 1952-1981 (over a million) in a lot of calibers... The 760 was then replaced with the now still produced 7600 but it's not called a Gamemaster.