Why

[Buck 89]

Why do you have some groups 1/8 and 1/4 and have one fly out to 3/8 which makes it not consistant? Will changing the tuner help that?

 

[Terry]

Something is different with the flier. It may be the brass, wind, how the gun is set in the rest, or simply me.

Me and the brass are the most common.

 

[spclark]

Why do you have some groups 1/8 and 1/4 and have one fly out to 3/8 which makes it not consistant? Will changing the tuner help that?

Maybe... but then maybe not. Have you tried different brands of ammo (wide price variations used to be the norm; now it's mostly availability that influences ammo choice) & found the same thing to be true?

Sometimes even the same brand and "flavor" of ammunition can have this kind of thing frustrate you when you change lots.

If the flyers are mostly vertical it's possible you can "tune" them back into the group.

If they're horizontal, pay close attention to wind conditions during your strings then factor that into what you see down range.

If they're more or less random, well....

 

[Buck 89]

They are mostly vertical

 

[GSPV]

Might be ignition.

 

[Lapua40X]

Why do you have some groups 1/8 and 1/4 and have one fly out to 3/8 which makes it not consistent? Will changing the tuner help that?

In situations like the one you describe, I'm always looking first at the shooter, then the other stuff. It doesn't take much at all to break a shot 1/4 inch off center of the group with something as simple as the shooter shoulder/rifle butt marriage.

 

[spektr]

If youre shooting a bolt gun, the speed you close the bolt matters. you will increase the std dev of the rounds if you close the bolt at varying speeds. It redistributes the powder in the shell and changes the velocity a bit.. Another variable to think of....

 

[Terry]

They are mostly vertical

Vertical is usually to little powder or bagging.

 

[Shynloco]

OK...gotta ask...what kinda of ammo are you using when the "flier" occurs? Anything less than Match Grade Ammo will certainly create that issue no matter what you do and even then, you might get that "awe shucks" round and it isn't always the ammo either.

 

[katokoch]

Using wind flags will help explain some of those mystery shots too. It doesn't take much at all to shift a .22 bullet 1/4" at 50 yards.

 

[djdilliodon]

So many variables come into play. From wind, ammo, bedding, action, barrel, trigger, stock, shooter, and the list goes on. Best thing to do is the process of elimination. When my cz 455 was stock after finding what ammo it liked I found it had a bedding issue. Since I was putting a lilja barrel on it I left it alone till after I did the barrel and other mods. After I pillar bedded/glass bedded it she is now a tack driver .