Hi All
I have a SIG 716i Tread that I'm very happy with.
Very accurate (1 MOA with quality match ammo).
However it starts to have a sticky bolt (the internal piston becomes difficult to move) after just 50 rounds,
after 100-150 rounds I will need to mortar the rifle to get the rounds and it will not reliably feed from the magazine.
I usually shoot the rifle with a ASE UTRA Dual 762 short BL low flow suppressor.
I don't think it's creating too much back pressure and the bolt piston does not seem very dirty after firing.
I put small amounts of oil on the gas rings (keeping them dry makes the issue worse).
What do you think could be the issue?
I have a SIG 716i Tread that I'm very happy with.
Very accurate (1 MOA with quality match ammo).
However it starts to have a sticky bolt (the internal piston becomes difficult to move) after just 50 rounds,
after 100-150 rounds I will need to mortar the rifle to get the rounds and it will not reliably feed from the magazine.
I usually shoot the rifle with a ASE UTRA Dual 762 short BL low flow suppressor.
I don't think it's creating too much back pressure and the bolt piston does not seem very dirty after firing.
I put small amounts of oil on the gas rings (keeping them dry makes the issue worse).
What do you think could be the issue?