Perhaps the problem is in translation.. I started with the 410 but on squirrels. It works very well indeed. I eventually moved on to rabbits and even quail though that was beyond my 7 year old skill.. These little shotguns were full choked and the largest problem with killing with them wasn't range, it was the full chokes!! I admit to starting my kids off with a 22 rimfire..but they pretty have ignored the shotgun totally..my fault. Still the 410 is a useful little cuss and I find myself working on more af them as my friends age and eyesight wanes. They work well in the squirrels woods, and while my favorite is still a rifle the littles shotgun will make the shooting a lot easier...The only real help as to pull length is that the shooters elbow should form a right angle(apprx) with the gun shouldered and the trigger hand in place. Also the thumb should remain at least a couple of fingers bredth away from the nose.. This is of course only a rough guideline and changes as clothing and angle of aim alters.. Good luck...