Thread: Obtaining more information from your groups - overlaying groups

This is good, has the potential to provide a lot of good info. The other version of this that can be quite enlightening but a LOT more hassle is firing one shot at the target with a cold/fouled bore each day until you run out of enthusiasm.

I have done this twice, once with a bog standard hunting rifle - which convinced me that that particular rifle was unreliable at longer ranges as it's usual work produced a group of around 1" to 1.5" 3 or 5 shots or whatever number of rounds floated your boat. What shooting the groups concealed (probably due to the 'blame the shooter/weather/rifle/ammo/range/whatever' effect) was that the mean impact point was very much inconsistent but it tended to group the shots together on the day giving a false sense of confidence. Shooting the same target one shot per day resulted in a 6" or bigger group on the target at 100m, which is not very good at all. At least it landed all the ammo it digested inside that 6" or so group... Never did work that one out, put it out to pasture.

The other was a .308 heavy barrel Rem offering, which went the other way and if fed decent fodder it was (and is) boring in it's reliability. General run of business with that one is every shot touching if the driver does their part. The shame of it is that it's a 26" truck axle of a barrel, and you need wheels to relocate it. I don't have the balls to fluff with it when it shoots so reliably as is.

Very slick idea, painfull process no doubt..Still alot of informatin to be gained.