There is a host of companies that make scopes specifically designed for crossbow use. These will generally have multiple aiming points (chevrons) to accommodate the ARCH of the arrow in flight to distance. As an example below is the Hawke reticle that I chose due to aiming points to 100 yards:
While you can use a standard rifle scope, these do not obviously incorporate the multiple aiming points. You either sight it in at a given distance, and
guesstimate the hold over / under when closer or beyond that; or... You acquire what is called an HHA Optimizer. This latter is a calibrated speed dial scope mount that allows you to quickly dial in any given range - once that range is determined (range finder). This allows a single crosshair scope to be used, and is employed by many long range shooters.
http://www.hhasports.com/catalog/8/o...er-speed-dial/
The other issue with rifle scopes is the parallax is usually set far to far away which can cause issues.
Some companies will adjust this down to what would be considered "proper" for crossbow use.
The "winder" or Crank Cocking Aid you mention is much more geared towards those who have difficulty cocking the higher pound bows than anything else. The stock Excalibur Rope Cocking Aid will allow you to comfortably load and
unload any Excalibur crossbow by reducing the felt draw weight by 50% and also will guarantee perfect string alignment for optimum accuracy. With these bows and the rope device you do
NOT have to fire the bow to unload it. I personally would not recommend the crank unless you really need it - I am now pushing 60, and can cock the 380 up to and over 40 times in a shooting session. Most that are in reasonably good shape should be able to do the same. Save the expense in this instance.
Here's the related video:
http://www.excaliburcrossbow.com/videos/index/319
You might want to send a pm requesting intel on Ten Point bows to member
tadpole here. He is my Crossbow Partner, the one who brought me into it so many years back now. He has always used a Ten Point as I recall, and that Man is Seriously
DEADLY with that bow in his hands.
If you are determined to run with a wheeled bow, methinks you can't go wrong with one of these.
Cheers,
Nog