Please Help Identify Vintage Plastic Parallax Range Finder

[mensajd]

In the late seventies or early eighties, a high school friend of mine and I went out varmint shooting. We used his yellow plastic parallax rangefinder to measure the distance to a CA ground squirrel at around 500 yards. I did the ballistic math (was an undergraduate theoretical math major at Cal) and dialed up 7.5 MOA adjustment based upon my 250 yard zero. 25-06 by the way. Squeezed off a round and the squirrel keeled over swishing its tail. Only thing more surprised than me was the squirrel.

Does anyone recall what type of rangefinder that might have been? Plastic optical parallax rangefinder about a foot long?

P.S. Winchester Model 70 with a screwed and glued action and free floated barrel. Otherwise stock.

Edited to fix a unit of measure that was off by more than an order of magnitude!

 

[6_5_284]

In the late seventies or early eighties, a high school friend of mine and I went out varmint shooting. We used his yellow plastic parallax rangefinder to measure the distance to a CA ground squirrel at around 500 yards. I did the ballistic math (was an undergraduate theoretical math major at Cal) and dialed up 7.5 degree adjustment based upon my 200 yard zero. 25-06 by the way. Squeezed off a round and the squirrel keeled over swishing its tail. Only thing more surprised than me was the squirrel.

Does anyone recall what type of rangefinder that might have been? Plastic optical parallax rangefinder about a foot long?

P.S. Winchester Model 70 with a screwed and glued action and free floated barrel. Otherwise stock.

THINK IT MIGHT HAVE BEEN AN EARLY "RANGEMATIC". IF MEMORY SERVES....IT WAS MADE IN ROCHESTER, NY.

 

[MrMajestic]

7 1/2 degrees? Sure it wasn't a .22LR?

 

[mensajd]

7 1/2 degrees? Sure it wasn't a .22LR?

LOL! Oops, meant MOA. Explains why I can't remember the range finder!

 

[JohnKielly]

I can remember back when we all called them degrees & not MOA hereabouts.

 

[mensajd]

I can remember back when we all called them degrees & not MOA hereabouts.

Thanks. Just a factor of 60!

 

[AckleymanII]

I think that that unit was called a Ranging 1000.

you looked through a view finder, and saw two images. You adjusted the two images to where they would come together and perfectly over lay one another where you would only be looking at one image. When the images perfectly overlaid each other, you looked at the dial and read off the range.

I just threw one away a couple of months ago.

 

[Rick in Oregon]

I used that old Ranging 1000 for many years with some degree of success, also for CA and OR ground squirrels. One the LRF's came out, it ended up in a box somewhere out in the garage. They were a miniature version of the old military artillery rangefinders that used optical comparatence. The smaller they got, the less accurate was the predictable outcome. But better than guessing at that time.

 

[muleystalker]

I have a Ranging 1000, bought it in the early 80's and used it for long rang archery. I used to shoot regularly out past 100yds, at least 4-5 times a week to practice for hunting. Those range finders were the sh8t back then, they worked good.I still have it around here somewhere. Took many animals between 80 -100yds, 98lbs on a Golden eagle bow, custom overdraw before anyone knew what they were, 24 7/8" 2213 XX75 arrows and 150gr 2 blade Ziwiky Delta V broad heads.I used to hunt sheep and hogs on Santa Cruz Is. off the west coast and Goats and hogs on Catalina Is. Many deer and hogs on the mainland too. This post brings back memories,Good times.