Mosin Nagant PU Scope Installation - Part 1 - Drilling and Tapping Receiver

This video is part 1 of 3 of the entire process for installing a PU scope on my Mosin Nagant 91/30. In this part I drill and tap the receiver. (WARNING: MISTAKE MADE, MUST SEE 2ND VIDEO) Watch parts 2 and 3 for a complete experience.
Also, watch this video and others all the way, to learn about the mistakes I made, and so that you can avoid them.

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