Question about Optics

2 Answers

Instruction manual for 1970's custom .22 scope with BDC

Dear Sirs:
I recently bought a Bushnell Custom 3x-7x .22 scope from the 1970's. It has the Bullet Drop Compensating feature. I need a manual. How do I sight this little scope in for elevation? There seems to be no way to raise the elevation separate from the BDC feature...

Sincerely:
William Davidson
St Louis Mo

billd707@sbcglobal.net

Posted by on

  • rossian Sep 10, 2008

    Recently obtained this sight and need the manual to clean and set up. Jayeff

  • Anonymous Dec 21, 2008

    Same scope and need instructions for sighting it in.

×

2 Answers

  • Level 1:

    An expert who has achieved level 1.

    Mayor:

    An expert whose answer got voted for 2 times.

  • Contributor
  • 1 Answer

Hold the outer portion of the elevation knob and unscrew the screw on top. then pull up on the outer portion and you'll see a silver screw marked with an arrow and the word "Up". Sight the rifle at a known distance and then line up the knob with that distance as you push it down on the scope and replace the screw. I have one of these and figured this out on my own, however I'm missing the mount and would like some pictures and dimensions of the mount if any of you can get some. I'm gonna be machining a new one and would like to keep it as close to the original as possible.

Posted on Jan 22, 2009

  • Level 1:

    An expert who has achieved level 1.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 5 Answers

It would be nice to know what muzzle velocity the BDC is set for, but I assume it's standard high velocity, not Mini Mags and etc.

The one I have mounted on a Henry lever action has a double sided clamp that fits the groove on the action/receiver and the groove on the scope. Rings won't work due to the groove on the bottom of the scope.

The clamp mounts for lasers, like a BSA that has mounts for .22 grooved receivers and Weaver bases, would probably get your scope functional for $30 or so, and still have the laser that would work with Weaver bases.

Posted on Nov 09, 2009

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

INFO FOR MANUAL BUSHNEL BANNER SERIAL NOH 469898 JAPAN MODEL SOLD BY BOUSCH AND LOMB AND ZERO SETTING


Contact technical support at this web site:

http://www.opticsplanet.net/bushnell-warranty.html

All the manuals are also located on this web site page.

Oct 05, 2010 | Bushnell Banner Dusk & Dawn 3.5-10x36 AO...

1 Answer

How to zeroin the bushnell dusk and dawn rifle scope


This is actually a RIFLE zeroing question and not a telescope topic question.

Sep 13, 2010 | Bushnell Banner Dusk & Dawn 3.5-10x36 AO...

1 Answer

How to open this scope?


I would return it to Bushnell for repairs-- here:

http://www.opticsplanet.net/bushnell-warranty.html

Sep 06, 2010 | Bushnell Banner Dusk & Dawn 3.5-10x36 AO...

1 Answer

How to use the BDC on my rifle scope



  1. Step 1 Take a rifle with a properly installed BDC bullet drop compensating reticle to a rifle range. Using ear protection zero the scope reticle so that the point of impact corresponds to the center of the cross hairs at the distance you have selected - typically 100 or 200 yds.
  2. Step 2 Determine the trajectory of the specific cartridge you have selected. There are several ways to do this. Ammo manufacturers publish trajectory and wind drift information. There are web based ballistic calculators like http://www.biggameinfo.com/BalCalc.aspx which will tell you how much your bullet drops at known distances.
  3. Step 3 Scope manufacturers like Leupold can be a valuable source of information about their reticle: "Leupold® Ballistic Aiming System: Boone and Crockett Club® Big Game Reticle aiming system provides a series of additional aiming points to improve your ability to shoot accurately at longer ranges. Nikon2_bing.gif also provides good information suggesting the marks on their reticle be used for zero at 100yds followed by circles below representing 200, 300, 400 and 500 yds if the cartridge travels around 2800 ft per sec. Nikon suggests the center cross hair be zeroed at 200 yds for magnum calibers traveling around 3000 ft per sec. We understant that each variation of different bullet weight and powder charge changes trajectory and a scope manufacturer can not build a different reticle for each different cartridge made so practice on the range to determine how well the marks relate to the actual impact of where your bullet strikes at a know distance is important. The one thing that people using BDC scopes typically have problems with is that a BDC scope has the reticle in the second focal plane of the scope. If the reticle was in the first focal plane of the scope the reticle would look smaller on low powers like 3x and grow proportionately larger as the power increased to say 9x top power. The problem is that while the marks on the BDC reticle correspond accurately to the bullet drop at the know distances 200, 300yds etc. What happens when you lower the power from the scopes maximum power to any other lower power is the reticle stays the same size and the field of view within the scope increases which means that the distance between these marks on the BDC reticle no longer corresponds to the point where the bullet will strike. In short BDC reticles only work at the maximum power of the scope or at a set specific power. At all other powers these BDC reticles do not accurately represent where the bullet will strike.
  4. Step 4 The center X always remains the same. If you zero at 100 yards and you know that your bullet drops 8 inches at 300 yards you could forget about the BDC marks and hold the center X 8 inches high - that works at any power 3x or 9x and should be used at lower powers. If you zero the center crosshair at 100yds and have the BDC scope at the maximum power 9X then the first line or circle below the center X should be the mark you place on the center of the 200 yard target----- the bullet strike should hit the center. If by some chance you put the scope on 3x and placed that first mark below the center cross hair on that 200 yard target you would shoot over the top of the target. This is because as the power of the scope decreases the field of view increases the angle increase and gets wider. You can experiment with known power settings and see at a specific power say 3x what that first circle down corresponds to and make notes because at any set power what the marks correspond to will be repeatable.
I got this from a website, hope it helps.

Apr 08, 2010 | Hammers Air Gun Rifle Scope 3-7x20 With...

1 Answer

When adjusting for a couple of inches, the next shot is a foot off. It seems to wander all over the target.


! click is 1 inch @ 100 yards, provided you have the correct scope for the rifle.
If you are sighting in a .22 LR 40 grain match velocity bullet for 100 yards, the mid range trajectory (50 Yards) is 6" higher. The bullet has a 6" arc half way to your target. If you are sighting in a .270 with 150 grain blunt tail bullets for 250 yards, the mid range trajectory is .4 higher. It only has 4/10" arc half way.
You most match the scope to the gun, and the 1 click= 1 inch rule will apply. Otherwise, it's lock it into a righd mount, fire it and adjust the scope accordingly. If you want to change the range on the scope, it will be guesswork.
I use a Bushnell Banner 3-9X40 with BDC. If you have BDC, make sure you have the correct distance ring in for the caliber.. It will make all the difference in the world.

Oct 27, 2009 | Bushnell Trophy 3-9x40 Rifle Scope, Matte...

2 Answers

Instructions Manual


Heres the link; http://www.bushnell.com/customer_service/manuals/telescopes/SkyTour_Voyager.pdf Please post again or call live if you need any more help :)

Apr 02, 2007 | Bushnell Sky Tour Telescope

Not finding what you are looking for?
Optics Logo

Related Topics:

2,295 people viewed this question

Ask a Question

Usually answered in minutes!

Top Optics Experts

Joe Lalumia aka...
Joe Lalumia aka...

Level 3 Expert

3186 Answers

kakima

Level 3 Expert

102366 Answers

Mark Campeau

Level 1 Expert

44 Answers

Are you an Optic Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...