Reply To: Purpose of side wheels?
They adjust the objective on a scope.. Essentially bringing what ever you are looking at in to focus at the distance you are viewing it. The wheel serves difrent types of shooter differently. I am mostly a hunter I have a range finder to get my distances so I added a side wheel just to have a larger quicker way of adjusting my focus.
Field target shooters and others have wheels they measure out well say every 5 yds make sure it is in perfect focus and mark it on the wheel, they will do this from 10 to 100 yds for example.. They will also shoot these distances and chart the drop or how much hold over/hold under they need to hit the target at that range… Now when they are shooting at some target at an unknown distance they adjust there wheel till the target is perfectly in focus look at the wheel, they can see how far the target is away and now they know where to aim using mill dots in there scope to hit the target accurately..My side wheel is small because I don’t need a big one, the benefit of a big one is for easer finer adjustments to the focus along with a bigger/more area to mark your ranges on, I believe the benefit to half side wheels and the ones that look like snail shells ext is they are big enough to give the benefits of having a big wheel but shaped in such a way where they don’t hit or bump into parts on the gun.
X27, thank you very much for this information! Wow, I didn’t know scopes were so complicated. As with all things PCP, this is all so interesting. Still waiting for my AA510S to arrive so I can get started in this game.