You won't stop those wobbles mate. Like Walshie says - the longer you have the rifle up, the worse it'll get and, the higher the mag on your scope, the worse it looks.
I asked the same question on another forum a while back - the best advice I was given was 'Don't dilly dally - when the shot's on, take it'. I was also told to accept that a success rate with standing shots will be lower. Of course, there is no substitute for practice.
I actually enjoy practicing it with my .22 TX200hc. It's heavy and difficult. I tend to bring the rifle up and over the target and, slow it down as the cr