If those 2 lots I have bought would not have been so good, I would have already bought a new barrel. My second Biathlon lot did 1-2moa, just trash.
This exactly. I am not used to this, the whole rimfire ammo behavior, and it scares the hell out of me. I immediatelly go on what's wrong with my rifle etc. I had that classic 500 round box of Lapua Center-X, but there were 2 different lots inside. I had no problem doing 1/2 MOA @ 50m with one 50 round box, and then came the second one which was worse than 1 MOA.
In Slovakia, we do not have many ammunition or gun importers. It's more like there is one company that imports SAKO rifles, and all other gunshops buy from them at wholesale prices. Same with ammo, Lapua's are imported by one company that imports several 500RD boxes monthly, and then distributed. Next thing, all the "more exclusive" ammo is usually on order only at my local gunshops - no problem getting it, but they just order it from that same importer over and over again, so I don't really know when I get my hands on a different lot of ammo. We are really a tragic market for this stuff.
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Just to be clear - how do you calculate dispersion? Is it outer edge to outer edge of the holes, or center to center? So i better understand how exactly is "Group Size" measured in that spreadsheed. About the barrel - I am not saying no to it, I just think that at the moment, the rifle is more accurate than I am when shooting just from bipod. But the quest to make it a surgical tool continues, who knows what happens. I would certainly like to push the rifle to it's accuracy maximum over time.
About the trigger - my trigger has that Set function, and it becomes very light and crisp then. It has about 200 - 250g trigger weight in that mode, but the pull is different from the normal one. Unfortunately, I really don't have any opportunity to directly compare it to BnA.
Next thing, we have a local custom gun shop not that far away from me, that quite frequently does glass and pillar bedding on Tikka Sporters. I was thinking about getting the job done, just for the peace of mind and getting that one step closer to a fully upgraded rifle. What do you think?
And the last thing - Can the muzzle brake affect accuracy? I have not done a proper testing on this, but I suspected that when I removed it, my POI changed and also my groups got tighter, so I do not have it mounted at the moment. It was mainly for the looks.
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Nice (Quad) Range you have there Easa!
Keith
Thank You ! About that bolt shroud, I would certainly pay a premium to get it, even 100+$. Unless SAKO releases something like baby TRG M10 in 22LR I intend on keeping this rifle for a long time. It has a great modularity and aftermarket options for virtually everything, so if there is an opportunity to have something upgraded, I am ALL IN. How many of us here own Quads? I said it previously, let's get together, and make a group order. Even guys from Rimfirecentral would be interested I think (those which are not already here). If i recall correctly, Sterk once told me that he would have to manufacture and sell about 30 shrouds to get to 80AU$ price, which is like 60 USD. I think that with 15-20 of us, it will be <100 USD for one piece. Again
Speaking of plastics, there is still that ugly plastic magazine housing with case ejector...