Labradar projectile offset

[46and2]

Yesterday I shot prone with one rifle and shot on the bench with another rifle, my labradar was on my ammo box between the two rifles. I set Projectile Offset to 18" and never missed a shot reading.

I always otherwise have the Offset to 6".
My Distance Units are at 30, 50, 70, 90, and 110 yards (the maximum I've ever had consistent readings). My readings at the 18" setting got 90% to the 90 yard distance.

Is there any reason/ advantage to keeping the Projectile Offset at 6"?

 

[centershot]

Good question.

 

[DocUSMCRetired]

Yesterday I shot prone with one rifle and shot on the bench with another rifle, my labradar was on my ammo box between the two rifles. I set Projectile Offset to 18" and never missed a shot reading.

I always otherwise have the Offset to 6".
My Distance Units are at 30, 50, 70, 90, and 110 yards (the maximum I've ever had consistent readings). My readings at the 18" setting got 90% to the 90 yard distance.

Is there any reason/ advantage to keeping the Projectile Offset at 6"?

Projectile offset helps the LabRadar back calculate the muzzle velocity. RADARs do not measure velocity at the muzzle, they measure it 20 yards or so in front. In order to calculate the actual muzzle velocity they need to know the bullets launch position vs its detection and measurement position to back calculate MV.

 

[ToddKS]

Based on my experience with Labradars, some units may be more effective with different settings vs other units. My unit, for example, worked best with the offset set to 12" and the rifle about 4" left of the unit. Other units worked better with different set ups. The key is to figure out what combination is most effective and do that every time so it is consistent.

The solution to all of this is to buy a Garmin. I say this as someone who used a Labradar successfully for 5 years. The Garmin is superior both in form and function.