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aircube · Veteran Member

When zeroing a scope within the PBR, is the first zero as accuarate as the second?

in other words if chairgun says the first zero is 14 yards and the second zero is 26 yards, is it better to use one over the other?

rsterne · Moderator

If your scope (sight) height is exactly correct, and the ballistics coefficient of the pellet is exactly right at your velocity.... there would be no difference in the "accuracy" of the zeros.... Shocked

However, I would recommend you 14 yards and then confirm at 26 yards.... Not a bad idea to alos confirm how high the pellet is at the mid-point (ie about 20 yards) and how low at 30 yards and beyond.... Nothing beats knowing the ACTUAL trajectory of your pellet.... Wink

Bob

aircube · Veteran Member

turns out the acctual trajectory is all over th GD place. Evil or Very Mad

I put about 200 pellets through my benjamin classic 22 with the 3-9x centerpoint @ 45 and 90 feet, and just when I would get anice tight group of 4-5 shots the next 5 shots would be 5" to the left!!! WTF Evil or Very Mad

Somthing must be moving in a huge way. Wind maybe? How much does it take to ruin a shot.

I dunno I am frustrated, any ides anyone?

aircube · Veteran Member

I just had a look at windage and wind speed on chairgun and it looks like a 90deg 15 mph gust will push a pellet 3" to the side at 25 yards, wow, i did't realize there was that much of an effect. I guess that problably explains it, i'm keeping my fingers crossed, and will try again on a calm day.