Originally Posted by Faulkner
In teaching your 10 year old I would start by sighting in at 25 yards and consider 50 yards long range. Once your son masters the shorter ranges going longer won't be a problem. 100 yards with a .22 can be challenging and frustrating for the young fellow if you start there, even with a scope.
I have a Firefield 5mW green laser on mine that I purchased from Sportsmansguide.com for under $80.00. I think you can see the green dot better than the red in daylight.
IMO, worth exactly what you paid
I'd keep it between 25 and 75 yards. With regular high velocity ammo, you can sight in at 25, be just a tad high at 50 and dead on again at 75.