Absolutely. Did you order a research letter online or did you mail me a check? Either way you'll get your money back.

Paid thru pay pal 6826 is serial number

Parker 10 gauge
 

Here is the measure meant of firing pins which frame is this. Many thanks

My engineering background would tell me that this is two sixteenths, not one.

Measurement starting point is suspect. I learned more than once (yes, I’m sometimes slow) not to trust the end of a tape when taking critical measurements. Start at the 1 line and see what you get.

I did it’s in the other post

Then please disregard. I did not see the other post.

I was about to make exactly this comment. I have seen many pictures posted lately using this technique. The only time I ever would do this when marking or measureing a long board with no help. Then only on rough cuts. For measureing down to 1/16ths, you should use a caliper or at least a decent quality scaled rule with a marked 0 line. Or do as the post says and use one of the marked lines as a starting point.

Absolutely. And, in the interest of fairness, and honesty, I will admit to making the very accurate cut, only to find I'm one inch short. ( I have a great memory. Short, but great)

You want more exact use calipers and measure right side of one hole to the right side of the other or left to left . Trying to figure center points is a crapshoot at best .