Acceptable group size?

[KOPFJÄGER13]

Hey guys, havent done much rimfire shooting and was wanting to know if this is acceptable, or what the standard was ....

 

[bmicek]

I will say the “standard” is relative based on your expectations and intended use for the rifle. A good standard for rimfire accuracy is 1 moa. Sub 0.5” groups at 50 is doing good while some people are chasing 0.1’s and 0.2’s. It’s all relative to your own expectations though. 0.5” 5 shot groups at 50 is plenty accurate to be competitive in an NRL22 match.

 

[KOPFJÄGER13]

So my 10 shot 1/2" group could be competitive?

 

[gpkon66]

Keep shooting the ammo it likes, and keep practicing setting up and moving. We shooters are the biggest problem our guns have.

 

[bmicek]

So my 10 shot 1/2" group could be competitive?

Absolutely. You will score much better at matches being able to make accurate shots in positional situations such as shooting off barricades and things like that rather than chasing 1 hole groups.

There are SOME, but few stages that require a superbly accurate shot. The KYL rack is one that requires very good accuracy but otherwise you can do very well at a match if you can consistently shoot groups like that.

 

[KOPFJÄGER13]

The only rounds ive shot through it is hornady 30gr vmax's, but seem real good...

 

[bmicek]

The only rounds ive shot through it is hornady 30gr vmax's, but seem real good...

Didn’t realize it was a 22WMR so won’t be able to shoot in NRL22 but still applies what I said above. Rimfires are picky generally so test a few kinds of ammo and buy up what it shoots best.

 

[KOPFJÄGER13]

Yes 22 wmr, sorry shouldve specified...

 

[justin amateur]

For ten shots at 50 yards with 22 wmr
that group is more than acceptable.
Y'er problem will be finding decent ammo.
Results with 22wmr can range from 1/4 inch for 5 shots at 50 yards,
to as bad as 2.5 inches due to variations in ammo quality.
Most 22wmr here in the US is made by CCI or Winchester.
The rest are usually just relabeled CCI or Winchester production.
Only differences are tip color, headstamps and label.

 

[KOPFJÄGER13]

For ten shots at 50 yards with 22 wmr
that group is more than acceptable.
Y'er problem will be finding decent ammo.
Results with 22wmr can range from 1/4 inch for 5 shots at 50 yards,
to as bad as 2.5 inches due to variations in ammo quality.
Most 22wmr here in the US is made by CCI or Winchester.
The rest are usually just relabeled CCI or Winchester production.
Only differences are tip color, headstamps and label.

Interesting, i didnt realize it was basically all the same....

 

[justin amateur]

Find manufacturer's date code on the box.
It'll indicate who made it and when.
Aguila, Armscor, Sellier and Bellot, RWS and I believe Fiocchi,
also produce 22wmr cartridges outside the US.
RWS is pricey, more expensive than high end 22lr.
25 bucks a box of 50 last I saw.

 

[KOPFJÄGER13]

Find manufacturer's date code on the box.
It'll indicate who made it and when.
Aguila, Armscor, Sellier and Bellot, RWS and I believe Fiocchi,
also produce 22wmr cartridges outside the US.
RWS is pricey, more expensive than high end 22lr.
25 bucks a box of 50 last I saw.

 

[KOPFJÄGER13]

And the brass is stamped with the "hornady H"

 

[justin amateur]

Yep, stamped with an H, made by CCI.

On the clear styrene plastic box
find the black stamp date code.

The CCI date code is a letter, a number, a letter and an id

Example: M21RX6

First letter is the Month,
Number following is the day
Next letter is the year
followed by the lot id


Months

A - January
B - February
C - March
D - April
E - May
F - June
G - July
H - August
J - September
K - October
L - November
M - December


Years

A - 1995
B - 1996
C - 1997
D - 1998
E - 1999
F - 2000
G - 2001
H - 2002
J - 2003
K - 2004
L - 2005
M - 2006
N - 2007
P - 2008
Q - 2009
R - 2010
S - 2011
T - 2012
U - 2013
V - 2014
W - 2015
X - 2016
Y - 2017
Z - 2018


Also applies to 17hmr.
Label may show Federal, Hornady, Remington, Norma, FiocchiUSA, but it's all CCI ammunition.

Letters I and O are not used as they can be confused for numbers.

 

[KOPFJÄGER13]

Yep, stamped with an H, made by CCI.

On the clear styrene plastic box
find the black stamp date code.
Then use Google to find the code translator for date of manufacture and lot ID.

 

[hlee]

Absolutely. You will score much better at matches being able to make accurate shots in positional situations such as shooting off barricades and things like that rather than chasing 1 hole groups.

There are SOME, but few stages that require a superbly accurate shot. The KYL rack is one that requires very good accuracy but otherwise you can do very well at a match if you can consistently shoot groups like that.

<0.5 at 50 is good enough to clean the kyl at 50. The smallest target is 1/4" in diameter, but you don't need to hit it square on to score a hit- you just need to move it. Edge hits in any dimension count. That gives you a window of 0.25" (target) + 0.22" (bullet) to score that hit. Hell a hit on the post will swing the target, and I've never seen anyone call a miss when the post is hit on the kyl... As said above, the biggest component is the shooter. Dropped points will almost always come from instability and poor wind calls- assuming you've got ammo your gun likes.