I think anyone who shoots regularly will appreciate that 1/4 MOA at 300m is very, very, very hard to do. It requires a good rifle, good glass, good ammo and a good shooter to all be performing well on the given day. There is also a big difference between 1/4 or 1/2 or whatever MOA at 100m and maintaining that grouping at 300 - it ain't staight-line math that's for sure.
I'm sure we all get a bit irked at some of the posts ( see my post earlier tonight on the Black and Green Forum questioning claims that AR's can break 1/2 MOA without too much effort to see what I mean ) but, really, I think most people are just so excited that they had a great grouping that they want to post their success online and is there really a problem with that ? I know I have done so - the first time I put "5 inside a dime" with my TRG 22 I was over the moon. I'm still excited when, with that rifle, I do 5 shot groups in the .3's and want to tell other shooters as (for me at least) it requires concentration and for me to perform as well as I can. Can I do the same with my Savage 10FP in a Choate Stock ? Quite simply - NO, I cannot - looking thru my records here, the best I have done with that rifle is 1.305 at 300 yards (not meters) but I'm still pleased with that as it is sub half MOA with a relatively cheap rifle.
Do you all really want to be calling people out who have posted their possibly not to be repeated all time best groups ? Personally, I think it is in questionable taste and may reinforce a mistaken impression of precision shooters.
BTW - On Dec 5 last year at Mission Rod and Gun I shot a 0.372" (4 shot not 5 shot - long story) group with the TRG - have I repeated that ? Sadly, No but if I do I will feel OK about posting it on CGN as, in my fiftieth year I couldn't give a monkey's toss about being called on it - it will be what it will be but some newer shooters may feel reluctant to post their stuff for fear of 'calling out' which will be too bad.