The target in the photograph is a DCRA 300 yard target. The aiming black is 22" in diameter and you can just see the edge of the black in the top left corner. So it's about 11" from the bottom-centre of the photo to the top left.
The V-bull (castellated ring in the middle) is 2.75" in diameter, the 5-ring (the smallest solid ring) is 5.5" in diameter. The round black shot pasters are about 3/4" diameter.
By eye, that's about a 1" group. Even though this is a 300 yard target, the shooting was done at 300m (328y), so this groups is about 0.3 MOA
Six shots into one 0.3 MOA at 300 yards is very good but it's not so unlikely as to automatically be a BS flag.
This photo has been posted here because this is a pretty darn good group, so it's not unreasonable to expect that it's a fair bit smaller than what can usually be shot (that's why it's interesting and why it has been posted, after all!!).
What can a good target rifle shoot (i.e. the raw gun plus ammo)? And what can a good iron-sights target rifle shooter shoot?
A rifle of this sort with good ammo should be able to reliably fire ten shots into 0.4 MOA at 300, with some rifles being capable of 0.3MOA or or even 0.2 MOA.
A topnotch iron sights shooter, in good conditions and with a bit of favourable luck on his side, can put ten out of ten shots in to the 2.75" diameter V-bull - that would be a score of "50.10V", or "fifty with ten vees". This is a very rare score but it can be done (I've never done it myself but I've gotten 50.9V once or twice a year).
The shooter who fired this group, in ordinary conditions at 300m, having a good shoot, might typically fire a score of 50.6V or 50.7V at 300. So from competition experience he'd expect to have 60% to 70% of his shots land in the ~1MOA-diameter V-bull. So you can well understand why he would be extremely please with these 6 shots... however I can pretty much guarantee you that he understands that this is a combination of good shooting AND a good rifle AND good ammo AND a particularly generous dose of good fortune. Still, it is right to enjoy little moments like this.
To have an idea of what good iron sights shooters do, have a look at the results from this year's national championships:
http://dcra.ca/results/2013/CFRC/a639.htm
This is the "short range agg", so all the shots fired at 300m. There are a total of 37 shots fired, so the highest score possible is 37*5=185 points, and the highest V-count possible is 37 vees. So "HPS" ("highest possible score") is 185V37.
You can see that the top score was 185V30 - so he shot 30 out of 37 of his shots into the ~1-MOA v-bull, and 37 out of 37 of his shots into the ~2-MOA 5-ring. Twenty shooters (out of a field of about 200 shooters) managed a score of either 184 or 185, with a vee-count in the low to mid 20s - so a typical vee count of 65% or so over the long haul.
I believe that this group is real and it actually happened under the conditions stated. I also believe:
- the shooter would not be able to do it on a second attempt
- I would not be able to do it in one (or even ten) attempts
- the winner of the 2013 Canadian Short Range Agg would not be able to do it in ten attempts
Good shooting Oleg, good gunsmithing Ian, and I look forward to shooting with and against you next year!