What does “hole in hole” mean to you?

Same. You need more info. For example hole in hole at 10 yards = most guns including Chinese models with barrel work and tuned by a pro. Hole in hole = fx at 30 yards with a decent tune by anybody. Hole in hole at 50 yards = ebr champion with best tuner on God's green earth and perfect conditions. Hole in hole at 70 yards = liar liar pants on fire. 

Centercut,

I agree with you. "Hole in hole" SHOULD mean that the paper should have one hole, roughly the size of one pellet. All the other pellets shot, should pass thru that hole.

And how many shots in that hole would it take to be classified as "hole in hole"? 

I think a lot of people interchange ragged hole with hole in hole. Like you guys said hole in hole should be literally pellet sized. 

Hole in hole =can't tell how many shoots were taken because it is one hole the size of bullet,one ragged hole=one hole with burrs,can tell more than one shoot taken..all holes touching=one big hole,tight hole=wishing.

From a non-benchrest competitor, hole in hole to me means that all the shots making up a group are so close together that the holes are overlapping, especially to the point of not being able to make out where one hole begins and another ends. Although I think I tend to use the phrase "same hole" vs "hole in hole."

I'd call something like this one, "same-hole:"

 

(ten shot group at 53 yards with the Red Wolf I'm reviewing). 

This would represent the opposite of "same-hole" to me:



(10 shot group from one of my personal guns, even without the flyer up high and right, very much NOT a one-hole/same hole/hole-in-hole group.)

All the variations of this concept are really just some of those cheesy shooter colloquialisms like, "gun shoots better than me," "if I do my part," "sporter trigger," "match-grade," etc. 

As far as guys saying they've got a gun (ANY gun, air powered or otherwise) that can put multiple shots into the EXACT same caliber-sized hole at 100 meters.....well that elicits a facial expression something like this:

Group sizes expressed in MOA are really about the best/easiest way for somebody to have an idea of what kind of accuracy is being described, or rather the most scientific way. 

Because of my line of work, metric units of measure (and therefore MILS) are more comfortable for me. But even I can quickly figure out half an MOA, or MOA, at various distances by just using the common 1 inch at 100 yards = 1 MOA, basic starting point. (yeah yeah it's actually 1.047inches at 100 yards, but just keeping it easy here) 

Agree HOLE IN HOLE would be many shots going threw the first shots hole.



One hole accurate is IMO a cumulative thing where each shot takes the hole a tad larger, yet has no fliers creating one bigger hole.

Picture above was 10 shot each at 50 yards with a .20 cal at >20fpe ... And that ant easy to get that many that close at that distance.

Hole in hole =can't tell how many shoots were taken because it is one hole the size of bullet,one ragged hole=one hole with burrs,can tell more than one shoot taken..all holes touching=one big hole,tight hole=wishing.

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I see what you did there. 

I’m glad you brought this topic up Mike, because I have often wondered what actually constitutes “hole in hole” accuracy.

There are some very good descriptions and interpretations expressed on this thread already, and I like the explanations and differences given for “same hole,” “one jagged hole,” “one big hole.” My shooting experiences equates more to these definitions and usually at only 20 yards when I’m trying to get my 20 yard zero for back yard pesting or plinking purposes. Even then, if I am being honest, the one hole may be pretty close to the first pellet’s diameter but it really is same hole, jagged hole, or one bigger hole. 

Literally speaking, I also agree with those that define “hole in hole,” as several or many shots go through the same “first pellet’s hole diameter.” That said, I kind of chuckle when I see forum members who describe a particular shooting session as “hole in hole” at 50, 75 or 100 yards. I like Frank’s analogy with the facial expression from “the Rock.” I laugh because my kids have always said, “ Dad, you are a real doubting Thomas.” I can relate!

Think about it truthfully, how many people have actually shot one pellet hole’s diameter at 100 yards for a five shot ( or more) group? I think this might be one of those discussions where people interpret the terminology differently. 

So, my takeaway is that I have a much improved perspective on this topic.

Like many, I assume exaggeration and go with my gut.

I’m seeing this more and more these past couple of months. Things like “I found the harmonic tune and now my gun is hole in hole at 50 yards”. I’ve even seen more than once that someone’s gun shoots “hole in hole” at 100 meters. Or even further. To me, hole in hole means you can’t tell how many shots are on the paper since it literally is one hole the same diameter of the pellet or slug. But I’m fairly certain that some view hole in hole differently than that. So what does hole in hole mean to you?

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For me, hole in hole means the same like u said, but after 5 shots or more. All the others are just a hole ripped from other pellets. So when I’m measuring I always take CTC to indicate.



regards

Patrick

True “hole in hole” shots are about as rare as “ hole in ones” . So when some one makes statements about multiples or being able to repeat upon request Skepticism is required . 
There also is a difference between best accuracy and typical or repeatable accuracy.
Claims of MOA accuracy are often made and rarely achieved .

BASICALLY YHE WORDS PROVE IT APPLY. 

So if i can consistently shoot 10 shot groups inside a dime at 50 yards with my .25 impact what would you call it? Maybe one ragged hole?

Sonny

Really good shooting skill for consistent dime sized groups at 50 yards.

Again, and only one man’s point of view. There is a clear difference to me between shooting dime sized groups and having multiple shots go through the same pellet hole diameter without making the hole larger. 

Yes, one ragged hole.

I have noticed that the shooter/gun combos that can shoot "one hole" can usually do it "all day long" too.

Hole "in" hole=one hole group, hole "on" hole=overlap first hole. A term I haven't heard on AGN is "bug hole". I like the term "one hole" over "hole in hole, two examples, one was with my Bobcat .25 sitting, the other with the dime was with my Impact X benched both 25y, these are "hole in hole", the example with the pellet stuck in the group I would consider "hole on hole" or a "bug hole", also shot with Impact .25, just my opinion.

It will be interesting to see any future posts that have some of these “famous quotes or claims” describing various shooting sessions. My next tight group is going to be characterized as “one giant manhole,” just so I’m on the safe side.