How do you measure your group size?

[starmac]

One shot groups save a lot of time and you can claim that there are three or five shots in the hole.

I am with you, that first one is mainly what I am interested in anyway.

[Taylor]

Found out I've been doing it wrong for a long time, I always measured Outside to outside, 1/2" group could be covered by a 1/2" dot. Grew up calling it by coins, cover it with a: dime, nickel, quarter, half dollar etc. Guess that just means the 1/2" groups were even better. What can I say? I'm modest, lol

Same here,that's the way we did it growing up.If you can shoot a dime at 50 yds,a squirrel shouldn't be a problem.

[Blammer]

I use a yard stick.

[freebullet]

Not being in competitions I've never used the caliper. I like using targets with 1" grid lines if I'm going for smallest group possible. I don't measure when the best I can manage is a pattern.

The app and computer programs sound interesting, I wouldn't mind hearing about any you fellers like.

[nagantguy]

Lots of good methods but I use one that is "fool" proof! I put a little paper plate over a large one and then staple the whole thing to a 4x3 piece of freezer paper and then shoot a five round group, adjust for windage shoot a five round group, adjust for elevation and shoot her another five round group. Forgot to mention the rifle is locked down in a lead sled. Then unless the lead lead sled is broken you should have 3 fairly good groups that can then be cut out and glued to a 3x5 index card, put in your wallet and shown your buddies as undeniable proof of your marksmanship .

[MaryB]

Like this? I forgot my spotting scope and didn't see the second hit so I moved a little to the right and fired 2 more rounds. Off of a $35 bench rest.

.223 at 100 yards, 50 grain z-max over CFE223

[Ed Barrett]

Way easier than I've been doing. Outside to outside minus the bullet diameter. I'm an idiot.

that is what I do too.