Rifle Scopes MOA or IPHY

[Outlaw45]

I have a Leupold VX-3 LR 6.5-20 with M1 turrets. I'm wonder if its in MOA or IPHY. If its IPHY each click would be 1/4 of an inch, Right? I shot at the bottom of my target, dialed to 12 on the elevation and shot again. The bullet impacted 12 inches high. At this point I think I have IPHY.

Shot at 300 yards. "Shooter" App says 5 MOA to get to 300 yards. Dialed to 5 on the turret shot, hit center of target.

I then shot out to 810 yards. "Shooter" App says 28 MOA. Dialed to 28 on the turret and shot. My hits were good elevation wise.

So I'm confused. Is there much difference between MOA and IPHY?

 

[JasonB]

Re: MOA or IPHY

I believe the difference between MOA and IPHY is that MOA is .05in greater at 100yd...

So at 100yrd,
1 MOA = 1.05"
1 IPHY = 1"

The turrets should tell you what value each adjustment is...

They can be 1/4, 1/2, or 1 full MOA or IPHY

A quick internet search told me that M1 Knobs are 1/4 MOA in adjustments...

so yeah, you turned the dial to 28 ... but it should have took you 112 clicks from a zero to get there ... assuming you have zerod your knobs and that it takes 28 MOA to get to 810yds from your zero

 

[Outlaw45]

Re: MOA or IPHY

Yes I zero'd it. I always thought Leupolds were in 1/4in per click adjustments.

So if its in MOA and I dial 12 minutes and shoot and it impacts 12 inches high is that right? If its MOA shouldn't it be a litte higher?

 

[c ward]

Re: MOA or IPHY

Go bigger in your test at 100 yds to take shooter error out and make the difference sealy seen you need to go 20 moa at least and 40 moa preferably .
An MOA is 1.047 inches at 100 yds , just do the math to get the POI change that should be seen on target .

The scope could be either unit of measure from Leupold as they made both and with no standard so to speak as to what scope came with what . I've seen M1 turrets in both IPHY and MOA .

 

[doc76251]

Re: MOA or IPHY

No,

MOA = 1.047" at 100 yards (or 1.04719" if you really want to get into the weeds)
IPHY = 1" at 100 yards.

If your dials are in MOA and you dial on 12 MOA the result will be 12.564" higher. Were they in IPHY it would be 12" higher.

The reason for not rounding off at 100 yards is because at 1000 when you dial on 40 MOA/IPHY the difference in impact is on the order of 20".

Cheers,

Doc

Cheers,

Doc