I recently pulled a few of my old Sigs out of the safes and let them get a short range day. So far it's been three, a P220 45acp, P239 and P226 in 9mm. Only two short range trips and just a few rounds each time but so far a uniform result. I need to build a bigger sample size and add in the P230 and P229 before reaching even a tentative conclusion but so far it's surprising and encouraging.
I've been fighting a left bias in Point of Impact for some time and it's been pretty consistent regardless of distance or handgun or ammo or sight pattern or new gun or old gun or striker or hammer or DA or DA/SA. Until now the only real exception has been with some of my old Western Marshall SAA clones and even there the majority of rounds were left of POI but just a smaller grouping but my other revolvers also showed the larger left bias. It's hasn't been a major issue but all the patterns have seemed to fall slightly left of Point of Aim. With the three Sigs so far, even though it's been probably two decades since I last shot them have given me a pretty uniform distribution pattern. Granted I have not be concentrating on bullseye accuracy, all the sessions have been at SD distances and looking for SD patterns so anything in the 9 or 10 ring of a B-27 would satisfactory. It's sure nice though to see patterns balanced right and left for a change. The sights on the three so far are two 'Dot the I' and one Three Dot Night Sights so it doesn't seem that the sight pattern is the issue.
Trigger finger placement is the normal culprit but I didn't feel or notice any difference between the Sigs and any of the others and there has been so great a variety among those others that it should preclude a consistently different finger placement or control.
So the search will continue and I'm still betting on the answer being the shooter rather than what is shot.
I've been fighting a left bias in Point of Impact for some time and it's been pretty consistent regardless of distance or handgun or ammo or sight pattern or new gun or old gun or striker or hammer or DA or DA/SA. Until now the only real exception has been with some of my old Western Marshall SAA clones and even there the majority of rounds were left of POI but just a smaller grouping but my other revolvers also showed the larger left bias. It's hasn't been a major issue but all the patterns have seemed to fall slightly left of Point of Aim. With the three Sigs so far, even though it's been probably two decades since I last shot them have given me a pretty uniform distribution pattern. Granted I have not be concentrating on bullseye accuracy, all the sessions have been at SD distances and looking for SD patterns so anything in the 9 or 10 ring of a B-27 would satisfactory. It's sure nice though to see patterns balanced right and left for a change. The sights on the three so far are two 'Dot the I' and one Three Dot Night Sights so it doesn't seem that the sight pattern is the issue.
Trigger finger placement is the normal culprit but I didn't feel or notice any difference between the Sigs and any of the others and there has been so great a variety among those others that it should preclude a consistently different finger placement or control.
So the search will continue and I'm still betting on the answer being the shooter rather than what is shot.