32TPI vs 40TPI adjustment increments

[257Roberts]

Anybody know the rear sight incremental adjustment difference for a 32TPI vs 40TPI rear sight?

I recently learned i have both, and have always treated both as "1/4 MOA" adjustments, but always wondered why clicks never matched on a similar sight radius...now I know!

Curious if I should be treating the 40TPI more like 1/5 or 1/6 MOA clicks...

 

[Alan Warner]

32 TPI is true 1/4 min @ a 35.810 sight radius.
40 TPI is true 1/4 min @ a 28.65 Radius.

 

[257Roberts]

Thank you!!!