Unertl Scope Block Chart?

Anyone have a Unertl scope block chart?

Specifically looking for the correct scope block heights (front and rear) for a Winchester Model 70 Target (1965 mfg date) with original barrel. The scope is a Unertl Target with 1.5" objective.

Not smart enough to do the trig and not enough time to do the trial and error method.

Thanks

Jim

Here's a thread from 2010 that asked the same question: http://www.jouster.com/forums/showth...pe-block-chart