Sight Gap

[Colin]

I have found that it can be quite hard getting accurate measurements for my sight gap so I have worked out the scale on my sight. (Toxonics 3550)
The scale on my sight goes from 0 to 130 but the distance is actually 104mm. (80%)
My 60m setting is 35.7 and my 15m is 1.5

35.7

[James Park]

Colin,
Yes, that will be fine.
It is a very important measurement, so it is worth taking quite a bit of care.
I measure it with a vernier calliper.
Any error in this measurement translates directly into error in the printed settings.