I decided to pin the ramrod pipes and trigger guard today, what a disaster!
I located the lugs first;
Measured where i wanted the pin to go through with my handy dandy el cheapo pin locator.
After marking the drill entry point is was off to the drill press;
The first one went perfectly.
Things went downhill from there, my bit wandered on the next one so I plugged the errant of side hole with glue and a toothpick and redrilled, everything came out fine on the next try, same for the entry pipe. All the pipes are pinned and looking good except for a couple of toothpick patched holes.