Santa left an older model Scopechief VI 4x12x40 in my stocking for Christmas but he did not leave the instruction manual. This model has the AO and a ranging system which I think was called Bullet Drop Compensator (BDC). The top (elevation) adjuster has a small window with graduations from 100 to 500 yards. I seem to remember that the system had different cams or dials for calibres of differing velocities but I only have the one in the scope. The top of the elevation cap has a large coin sized slot which moves the 100-500 yard indicator and nothing else. My question is how do I sight in the elevation at the range. From a detailed inspection it looks like the BDC system might unscrew our leaving a normal elevation adjuster underneath but everything seems pretty tight and I do not want to scratch the finish on the BDC cap if I am wrong in my speculation. Can anyone help with knowledgeable advice? Sorry I can't post pictures. Thanks.
Bushnell Scopechief VI Question (4x12x40)
- Thread starter hiredgun
- Start date
- Location
- Hillbilly shack in the boonies
Those things never worked
, better to toss the rifle at the game animals.
Give ya $150 if in excellent shape
, better to toss the rifle at the game animals.Give ya $150 if in excellent shape
Yes, you unscrew the plastic screw on top of the elevation knob, lift the top cap and range drum out. Then turn the slotted screw underneath with a coin to adjust your elevation. The clicks are a lot coarser than most new scopes and the change per click varied with the scope, it will be round 3/8' to 5/8' per click. Once sighted in replace the drum, lining up the correct zero range mark with the witness mark, hold the outside of the cap still while you tighten the screw. Don't over tighten it, they are plastic and break easily.
If the elevation marks aren't correct for your rifle try to find a blank drum at a gunsmith shop or gun show and mark it to correspond with your rifles trajectory.
If the elevation marks aren't correct for your rifle try to find a blank drum at a gunsmith shop or gun show and mark it to correspond with your rifles trajectory.
Bushnell Scopechief
Thank you 762shooter. The top elevation cap came off exactly as you advised. Next spring I will sight in the rifle at 100 yards and I assume set the dial to 100 yards. I do not actually intend to use the ranging system on my 270 but if it works reasonably accurately that would be a big plus. When I have more time and a magnifying glass I will attempt to determine if the dial/cam/whatever has a number on it to indicate calibre or velocity. If anyone else has experience with this model or type of scope, I am interested in learning more. Thanks again.
Thank you 762shooter. The top elevation cap came off exactly as you advised. Next spring I will sight in the rifle at 100 yards and I assume set the dial to 100 yards. I do not actually intend to use the ranging system on my 270 but if it works reasonably accurately that would be a big plus. When I have more time and a magnifying glass I will attempt to determine if the dial/cam/whatever has a number on it to indicate calibre or velocity. If anyone else has experience with this model or type of scope, I am interested in learning more. Thanks again.
I haven't been able to find any kind of table on the internet or any marking system that makes sense to me. If you can find a bland drum at a gunshow or gunshop buy that and mark it true to your rifle and load. It really is the simplest way.
I have the same scope
The BDC may not be absolutely accurate but it's as close as I can guess distance in yards anyway!
To use range guessing part your supposed to adjust the magnification till the body of a deer (I believe the numerical value is 30") fits between the two horizontal crosshairs, you then read the yardage in the little box directly above the verticle crosshair. Next you dial the Drum of the elevation to the appropiate distance & shoot dead on.
If anyone has a manual for these fine scope would you please scan & post it
The BDC may not be absolutely accurate but it's as close as I can guess distance in yards anyway!
To use range guessing part your supposed to adjust the magnification till the body of a deer (I believe the numerical value is 30") fits between the two horizontal crosshairs, you then read the yardage in the little box directly above the verticle crosshair. Next you dial the Drum of the elevation to the appropiate distance & shoot dead on.
If anyone has a manual for these fine scope would you please scan & post it
