I have a sako quad and acquired a 15" barrel and spare synth stock
previously it worked a charm, hole on hole or close to it at 50yds
The crown and thread job was a bit ropey so I had it recut and in chasing my dream of a very short pointy rifle I had an inch and a bit nipped off so the threads were just longer than the stock
The crown and threading job I had done is first class, have had work done on centrefires by the same person and they all perform well
took it out last night for the first time to zero it and it wouldn't group for toffee!
picture below to demonstrate just how bad!
the three triangular shaped groups are the .22lr (little circular ones at .17m2 at 50/100)
for contrast the sticker on the lower right is one of 5 shots plinking off sticks at 60 yds with the 14-15" barrel
4 inside an inch, 3 at around 1/2", off a proper rest it was mostly touching with some around about
barrel hasn't been deep cleaned (other than to remove swarf/solvent from cut/thread job)
ammo is the same
mod is the same
scope is the same, (all tight)
bottom target wasn't the most solid rest but no worse than off sticks (shots to the left were first ones to zero and the scope was adjusted)
middle target was two groups prone off a solid rest. first group left and scope adjusted to move POI right
is it now too short? or am i missing something here
I am conscious that the twist rate of 1:16.5" means it now only has roughly 3/4 of a twist as opposed to nearly one full twist with a 15"