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scope base
In computer programming, the scope of a name binding—an association of a name to an entity, such as a variable—is the part of a program where the name binding is valid, that is where the name can be used to refer to the entity. In other parts of the program the name may refer to a different entity (it may have a different binding), or to nothing at all (it may be unbound). The scope of a name binding is also known as the visibility of an entity, particularly in older or more technical literature—this is from the perspective of the referenced entity, not the referencing name.
The term "scope" is also used to refer to the set of all name bindings that are valid within a part of a program or at a given point in a program, which is more correctly referred to as context or environment.Strictly speaking and in practice for most programming languages, "part of a program" refers to a portion of source code (area of text), and is known as lexical scope. In some languages, however, "part of a program" refers to a portion of run time (time period during execution), and is known as dynamic scope. Both of these terms are somewhat misleading—they misuse technical terms, as discussed in the definition—but the distinction itself is accurate and precise, and these are the standard respective terms. Lexical scope is the main focus of this article, with dynamic scope understood by contrast with lexical scope.
In most cases, name resolution based on lexical scope is relatively straightforward to use and to implement, as in use one can read backwards in the source code to determine to which entity a name refers, and in implementation one can maintain a list of names and contexts when compiling or interpreting a program. Difficulties arise in name masking, forward declarations, and hoisting, while considerably subtler ones arise with non-local variables, particularly in closures.
i always seem to buy one piece bases if I can find them for the rifle I'm scoping.
It said,in some circles,that one piece strengthens the action. A little more rigidity
Some no matter. But it can get in the way of loading from the top or ejecting.
Never had these problems my self.
Now it does...
Came with the rifle in excellent condition. $15
this is a weaver style base comes with the screws
Brownells listed these at $89.99 when they had them in stock.
EGW Picatinny scope base for Remington 700 short action. It does have a 20 min cant to it. Nice shape, $25
Warne Weaver/Picatinny Rings, 30mm diameter. Low style 0.25" height. $25
Other Rings: Unsure of brand, also 30mm picatinny/weaver type. I guess I'd call them medium height (0.475")...
Scope base for A Garand. Simply remove the rear site and this base attaches with the materials supplied. The scope will be offset to the left and a rear aperature is within the base for use of the iron sites. A couple of allen wrenches are all the tools needed. Asking $95.00 OBO and will...
Scope base for a Garrand and a Bushnell Elite 3200 2-7X32 scope. Nice clean scope and the Garrand base bolts on in place of the rear site. The scope is offset to the left so the iron sites can still be used with the scope in place. Everything is included except the allen wrenches. Asking $95...