Some days it works other days you might as well shoot skeet!
I shoot a heavy gun and practice with it is key, all the advice above is good but a heavy gun will not wander around like a light one will.
Find a good - repeatable - accurate position and do not deviate. Repetition is very important, do the same thing every time.
Another thing is diet - watch what you eat and when you eat - it can have a dramatic affect on your accuracy.
I shoot a heavy gun and practice with it is key, all the advice above is good but a heavy gun will not wander around like a light one will.
Find a good - repeatable - accurate position and do not deviate. Repetition is very important, do the same thing every time.
Another thing is diet - watch what you eat and when you eat - it can have a dramatic affect on your accuracy.