I know ,a dumb question!

[jonbearman]

How do you convert 1.155 to millimeters?

 

[DeltaBravo]

Multiply by 25.4.

Dennis

 

[sdean]

I google 1.155 inches equals millimeters. 29.337

 

[jonbearman]

Close enough and that makes these tactical rings 30mm as I used calipers as a rough measurement.They are PRI rings.

 

[sdean]

I guess that means a .284 is really a 7.2mm.

 

[M-61]

http://www.metric-conversions.org/converter.htm

 

[M-61]

I guess that means a .284 is really a 7.2mm.

Well......across the grooves...land to land....depends on how it's measured. e.g. Lazzaroni rifles

 

[timeout]

I push a button on my digital calipers to toggle from inches to metric. ;D

 

[snakepit]

I google 1.155 inches equals millimeters. 29.337

+1 on the Google

 

[hogpatrol]

Inches over .0393701 = mm

Ballpark, easy way is use .04

 

[Macropod]

Not a dumb question at all!

To convert your 1.155" to millimeters just multiply by 25.4

29.337mm

To do the reverse millimeters to inches just divide by 25.4

 

[gotcha]

Check the back pages of any good reloading manual for conversion tables.

 

[John11-87]

I always use 25.4?

 

[Syncrowave]

http://bit.ly/1lhlpTb

 

[Larryh128]

The easist way that I know is to cheat by taking the measurement & hitting the metric button.

 

[jonbearman]

Now I feel dumber yet not setting my calipers to metric.I know I am older now and it proves your brain doesn't work the same.

 

[gotcha]

Jon, Welcome to the CRS club 8) I'm a Charter member.