Standard Deviation & Extreme Spread

[kydave19]

Mornin'!

Just back from the range after trying out my newbie reloads from my new Pro 4000.

From 2 ten round strings from my Glock 34 firing 147gr Summit City coated .356 bullets.

This over 3.4gr IMR PB with Fed primers.

First 10: SD=10 / ES=26 / Average velocity=916 / Power factor= 134.65

Second 10: SD=8 / ES=23 /Average velocity=902 / Power factor= 132.59

For kicks, I shot a string from my new Ruger Max-9

SD=13 / ES=42 / Average velocity=837 / Power factor= 123.04

So the Max-9 didn't make minor power factor, but I'm not shooting it in competition. Like I said, just for kicks.

Curious for input on those numbers for the G34, my USPSA gun. I know smaller is better, but bearing in mind, this is my first dip into the reloading pool after shooting for many, many years.

Thanks for your comments & suggestions!

Dave

[horseman]

Late to the party on this one, sorry. I would be happy with those numbers for my "precision" rifle rounds . I've never had numbers that good with my 9mm or 45acp loadings. Or any other handgun loads for that matter. What ever you're doing just keep doing it cause' it's obviously working really good.