How often has this happened to you?

[ShootnStr8]

My handloads are only but so uniform.  Variations in velocities are something that I have always experienced.  While I have had duplicate velocities, I have never had 3 rounds give the exact same velocity in a row. 

However, while chronographing a good number of loads yesterday, my friend shot a 3 round group out of this 270 WSM.  All registered velocities of 3174 fps.  I wish I can say that he was using my handloads, but he was shooting Federal Premiums that use 130 grain Barnes TSXs.  I must say that I was impressed!  BTW, these remarkable cartridges yield 3/4 inch groups at 300 yards out of his Rem 700.   

How often have you experienced a standard deviation of 0 at the range?  I was wondering what benchrest shooters experience. 

Blessings!

Shootnstr8

[jhalcott]

 FIRST I have never got a 3/4 INCH group at 300 yards! Maybe 3/4 MOA(~2.25"), and that with a VERY accurate BENCH rifle. I have gotten down to the single digit SD with a couple varmint rigs, though. I rarely worry about the velocity till I have a consistently accurate load,say 1 inch at 100 yards. Then I start to really tweak the load to see if it LOOKS like it will shrink much.. Depending on the intended use of the gun, I may just go with it as is.

[necchi]

Never,
Bench guys can usually get the ES an SD in the single digits, but thats with 10 or 20 rounds not just 3.

[DannoBoone]

I did it last year in a Savage 10MLII with a custom .45 PacNor
barrel. To say the least, I was amazed. The powder for the loads
had been weighed and of course the loads were compressed as
much as one can do with a ramrod. Two rounds were identical
and the third was only 6fps off. Holes in the target were
touching each other.

[Catfish]

I one time cronoed some shotgun ammo I loaded that did that. The thing that makes it more remarkable is that they were 7/8 oz, 1 oz, 1 1/8 oz and 1 1/4 oz loads that I did it with. I fired 1 ea. just to see what I had.

[DON IN VA]

My handloads are only but so uniform.  Variations in velocities are something that I have always experienced.  While I have had duplicate velocities, I have never had 3 rounds give the exact same velocity in a row. 

However, while chronographing a good number of loads yesterday, my friend shot a 3 round group out of this 270 WSM.  All registered velocities of 3174 fps.  I wish I can say that he was using my handloads, but he was shooting Federal Premiums that use 130 grain Barnes TSXs.  I must say that I was impressed!  BTW, these remarkable cartridges yield 3/4 inch groups at 300 yards out of his Rem 700.   

How often have you experienced a standard deviation of 0 at the range?  I was wondering what benchrest shooters experience. 

Blessings!

Shootnstr8

If he has a factory rifle, and the physical abilities to shoot it so as to attain a 3/4" group at 300 yds.,  that to me is much more amazing than having a standard deviation of zero in bullet speed !!! 

[ShootnStr8]

Catfish, that is truly remarkable.  I didn't realize that you could get such consistency from shotshells especially among differing loads. 

Don, I agree.  He is a good shot and he was using a lead sled.  The range is narrow and completely enclosed by a 2O foot (?) high mount of dirt which serves to reduce the affects of the wind.  The bench is of cinderblock and cement construction.  It is a wonderful place to test loads.   

Blessings!

Shootnstr8