Rifle Scopes US Optics SN3 how 2 tell Mil or Moa/ no record

[Mag 300]

I have a US optics scope and the record of its build has been lost at USO. its an 04 scope so 5 years old. erek SN3
Question is how can I tell if its a Mil or Moa???
Sorry if your laughing its a real question.
Thanks Bill

 

[Ratbert]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

If it goes 0-9 with 9 clicks in between each number it's Mil
If it goes 0-22.5 with 3 clicks in betwen each number it's 1/4 MOA
If it goes 0-45 with 1 click in between each number it's 1/2 MOA

 

[Rafael]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

All EREK's have 90 detent positions, as far as I know.
This means:

If it's 1/4 MOA or IPHY, you will see 22 as the last number marked with two ticks marks left over (22.5 MOA or IPHY per revolution).

A 1/2 MOA or IPHY model will have 45 as the last number marked (45 MOA or IPHY per rev).

A 1/10th Mil version would have 9 as the last number marked (9 Mils per rev).

 

[Rafael]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

You are too fast for me, Ratbert.

 

[Ratbert]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

Slow is smooth, smooth is fast.

 

[Mag 300]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

Rafael , Ratbert

Thank you for the information
I have one 1/4 moa and one 1/2 moa
Greatly appreciate it
Bill

 

[9H_Cracka]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

Actually Raf the last whole number you see on the EREK tenth mil if it only has markings for one rev is an 8... otherwise you are back at 0 for the 9th mil.

The 1/4 MOA knob with the 1 thru 22 and 23 thru 44 I thought was way way too busy for me. Like the one turn marked tenth mil a bunch more.

 

[Killswitch Engage]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Ratbert</div><div class="ubbcode-body">If it goes 0-9 with 9 clicks in between each number it's Mil
If it goes 0-22.5 with 3 clicks in betwen each number it's 1/4 MOA
If it goes 0-45 with 1 click in between each number it's 1/2 MOA

</div></div>
my st-10 with erek 1/2 moa has 5 hash marks/click before the first number which is 3moa.

 

[Rafael]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: NineHotel</div><div class="ubbcode-body">Actually Raf the last whole number you see on the EREK tenth mil if it only has markings for one rev is an 8... otherwise you are back at 0 for the 9th mil.

The 1/4 MOA knob with the 1 thru 22 and 23 thru 44 I thought was way way too busy for me. Like the one turn marked tenth mil a bunch more. </div></div>
Yeah, I realize now that I screwed that up.

I agree, the 1/4 is a bit busy. Would really like to see a 1/3 MOA/IPHY version. That would be an even 30 per rev.

 

[9H_Cracka]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

"Would really like to see a 1/3 MOA"

For all practical purposes, that is what a tenth mil knob is.

 

[Rafael]

Re: US Optics SN3 how 2 tell Mil or Moa/ no record

Yup, got that part.
Never thought someone would be asking for mil adjustments with an MOA or IPHY reticle.