Redfield accu-track - ops manual

[Bigbubba]

Anyone got the operating manual for a 4-12 x40 scope?

Can't find anything on Redfields web site

It is from the 70's.
Supposed to be a rangefinder.
Objective end has graduations from 50 to 600 yds then infinity.

The reticle has 2 horizontal lines at the top.
At the bottom of the reticle has yardage marks at the 5 o'clock position from 50 to 600 yds.


Thanks
Marty

 

[Why not?]

The two stadia wires at the top are used to bracket a deer, antelope or similar sized animal, by changing the scope power. As the power changes the scale moves, and the shortest yardage still showing is the distance to the animal. The yardage is calculated exactly IF the animal is 16" from withers to brisket.

Of course, animals are not exact measurements, but that is how the distance is indicated in the scope. If the animal is smaller the distance to the animal will actually closer than indicated. If the animal is larger, the distance will actually be farther.

Redfield actually called the feature "Accu-Range" back in those good old days.

Ted

 

[jackrabbit000]

I still have the box for mine downstairs somewhere. Mine was called the Accu-Trac. I also have the extra dials for the elevation adjustment for the bullet drop compensator. The one for the 30-06 150 gr bullet is what I have installed.

 

[Why not?]

Yes, Accu-Trac is a different system, and uses graduated dials on the elevation adjustment to compensate for drop at different distances. Determine the distance to the target, dial in the distance to target, hold the centre of the reticule right on the target, and squeeze the trigger.

If you have selected the correct drum to match the trajectory of your load, you should hit the target.

Ted

 

[remington jim]

redfield accu trac

Yes, Accu-Trac is a different system, and uses graduated dials on the elevation adjustment to compensate for drop at different distances. Determine the distance to the target, dial in the distance to target, hold the centre of the reticule right on the target, and squeeze the trigger.

If you have selected the correct drum to match the trajectory of your load, you should hit the target.

Ted

Hi - I have a 3-9 redfield low profile widefield with the accu trac system - its based on 18" between the wires in it and it ranges from 200 -600 yds . it works very well with the right load married up with the right dial !+

RJ

 

[Otto V]

Anyone got the operating manual for a 4-12 x40 scope?

I have the operating manual that came with an early 80's 6-18X Accu-Trac . . . if you send me a pm with your email address, I would be happy to send you a scanned copy of the manual.

 

[jackrabbit000]

Yes, Accu-Trac is a different system, and uses graduated dials on the elevation adjustment to compensate for drop at different distances. Determine the distance to the target, dial in the distance to target, hold the centre of the reticule right on the target, and squeeze the trigger.

If you have selected the correct drum to match the trajectory of your load, you should hit the target.

Ted

Ted, the Accu-Range didn't have the bullet drop compensator like on the Accu-Trac? I thought the reticles looked exactly the same on both scopes.

 

[jackrabbit000]

Anyone got the operating manual for a 4-12 x40 scope?

Can't find anything on Redfields web site

It is from the 70's.
Supposed to be a rangefinder.
Objective end has graduations from 50 to 600 yds then infinity.

The reticle has 2 horizontal lines at the top.
At the bottom of the reticle has yardage marks at the 5 o'clock position from 50 to 600 yds.


Thanks
Marty

I found this on the net.

http://www.abousainc.com/ATsystem.htm

 

[Why not?]

Ted, the Accu-Range didn't have the bullet drop compensator like on the Accu-Trac? I thought the reticles looked exactly the same on both scopes.

The original question was about a scope made in the seventies. Pretty sure that was before the time of Accu-Trac.

For certain, the Accu-Range system came first, and it did not have the graduated drums to use on the elevation adjustment. You used the stadia wires to estimate the range, and then held over the target to compensate for the trajectory.

Accu-Trac came later, and had a four graduated drums that fit on the elevation adjustment. Three were marked to compensate for different trajectories, and one was a blank dial that you could mark up yourself. Once you determined the range using the stadia wires, you adjusted the dial to match the range indicated on the elevation adjustment, and then held dead on for the shot.

They both had the same reticule, with the little tombstone shaped range indicator in the bottom right of the sight picture, however the compensation for bullet drop was achieved differently.

Ted