do you notice any difference in grouping with a cold barrel? take 1 shot wait till it cools cold and then another, compared to a warm or hot barrel..after multiple fast shots??The barrel is original to the gun and no work has ever been done to it, except a trigger polish job. I bought the gun brand new in a box from an official Ruger dealer. And yes, I took the flash hider off and replaced it with a thread protector. I didn't really need a flash hider for hunting roe deer. By the time the deer has the opportunity to see the muzzle flash, it would probably already be too late for the poor fellow.
The gun sits in its original synthetic stock. I have tried both a Hogue overmold and an original wood stock, but eventually came back to the original one. I didn't notice any big difference in accuracy from one stock to another, but then again I haven't tested this exentsively. Can poor bedding cause accuracy problems of this scale?
I use both factory and handloaded ammo. The handloads seem to group a tad better, but nothing huge, and certainly not enough to solve the problem. When the groups are 10-12 MOA, shrinking them by 2 MOA doesn't really do much good.
Factory ammo I have tested is, among others, American Eagle 55 gr FMJ, Winchester 55 and 62 gr FMJ, GGG 55 gr FMJ, GGG with 69 gr SMK bullets, PMC 55 gr FMJ. With handloads I have been using Nosler RDF 70 gr and PPU 62 gr FMJ bullets with different loads and lengths. With the Nosler RDF's, I think I can see a slight improvement in the groups, but still around 10 MOA.
I have ordered a brand new walnut stock which should be here shortly, I will take the gun back to the range when I get this.
I also have the impression that the gun is more accurate when fired offhand. My groups are just as good, and some times better, when firing offhand from a kneeling position (which is my favourite shooting position), instead of using a sandbag shooting rest. With all my other guns it's of course the other way around. So the thought did occur to me, that the gun doesn't like being rested on a sandbag, but it just seemed a bit far fetched.