Originally Posted by Rentacop
Question (?) : What effect does barrel length have on accuracy in a .22 ?
The 10/22 that I have has a short barrel, a heavy trigger and if I shoot fast with high speed ammo, the stainless steel barrel heats up and tosses shots to the left . I use the stock bead & blade sights and don't set any records . I don't suppose I can use " combat accuracy " as an excuse this time
The length of the barrel doesn't have a lot of effect on the mechanical accuracy the rifle is capable of. A shorter barrel of the same diameter is actually more rigid.
However, using open sights with a shorter barrel, also shortens your sight radius, which can make it harder to get the most accuracy out of the rifle.
With the 10/22 the way the barrel is mounted to the aluminum receiver can cause some problems as the gun heats up. With most center fire rifles people will try to free float the barrel to reduce influence of changing pressures against the barrel channel and changing harmonic vibration of the barrel as it heats up. With the 10/22, many owners find they are better off using a pressure pad in the barrel channel near the muzzle end to put some pressure in the barrel to keep it as consistent as possible. Some folks will actually glass bed the barrel channel and float the action, since it is made of aluminum and the opposite way would have the steel barrel suspended by the softer, lighter, aluminum receiver. Many owners also ditch their barrel band from the 10/22 also, or relieve it so that it doesn't actually touch the barrel and possibly influence the barrel as it heats up.
Ideally you want the barrel to have consistent pressure from cold shot to hot shots to prevent the walking you are describing.
I experimented with mine to find out it liked a pressure pad in the barrel channel toward the tip of the stock. Also, I relieved the barrel band so it wasn't touching the barrel.