Range Report Is this standard numbers for factory Hornady & Federal ammo?

[LJT88]

I recently got behind a labradar and got some numbers for the Hornady 147 ELDM and Federal GMM 130 OTM rounds. I only had a few rounds left as it was at the end of the day and I was almost done shooting. I understand that more rounds would give a better representation of the round. I had 5 shots with the 147 and 5 with the 130 but only 4 registered.

In this small test the consistency seems very good. Is this normal?

 

[JMGlasgow]

If the picture on the right is the 130gr ammo, that looks correct. I have a 25" barrel with a suppressor and I'm getting just over 2900fps with the same stuff.

 

[LJT88]

Yes the right picture is the 130 OTM. Are single digit SD’s common for factory ammo?

 

[JMGlasgow]

With that I would expect sub 15sd over 10 shots. Sub 10 is a bonus.

 

[phlegethon]

The standard deviation of such a small sample number is not statistically meaningful and will often be much lower than the true number.