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Alan Alford's build

2250b Tube for later move to bulk CO2.
12" .22 Caliber Barrel from Doomsday Backpacker
Brian & Assoc. Alluminum Breech with 2 barrel screws
Original site rear
Pin site on Custom Mt. Airguns Muzzle Break
2x1 Centerpoint Scope with UTG dovetail adapters
Mountain Airguns Custom Bolt and Handle
Mountain Airguns Custom Power Adapter and spring guide
B&A Boss Valve for extra Power

Built mainly for fun and to shoot at local Field Trial Pistol Match.

It currently it shoots a 14.3 Crosman Hunting Pellet at about 530 fps in a 72 degree room for 8.92 FPE.



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Measuring Mildot spacing....???

July 19 2012 at 11:16 AM

dan house  (Login dan_house)
Crosman Forum Member
from IP address 153.90.162.47

an extensive search of s acouple forums, and googling didnt turn up what I'm looking for

I need to be able to measure/calculate the dot spacing on the reticle itself. Its not listed in the miniscle users guide that came with the scope

This scope has hash ticks/lines instead of dots. Chairgun wants to know the dot to dot spacing for its math.

google did turn up how to use the dots to range a en elk, mountain goats and the headlight spacing on a Hudson coupe, but nothing to say how far apart the dots/hashes are in the reticle itself

One thing Ive thought of, is to take one shot at 10 yards using the "center" dot , raise or lower the scope one dot/tick and shot at the same aim point. Then meausure that CtC distance and multiply that by 10 to give a 100 yard spacing.

Example: my 10 yard spacing ctc is .39 inches. times 10 (for the 100 dot to dot spacing) thus giving 3.9 for the dot to dot spacing.

yes no maybe?

EDIT: Update...... using a search term of "mil dot calibration" on the Yellow's FT sub-froum got a lot more hits, including Ray's write up (see below)



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This message has been edited by dan_house from IP address 153.90.162.47 on Jul 19, 2012 12:38 PM


 
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