I can understand your question, but I need to answer in English.
It's not possible, as far as we are aware, for the same reasons Charles just gave about the safety of using any kind of handgun with the conditions of the ice. But the other thing is that even in using the rifle, we feel—and this reflects current marine mammal regulations—that the sealers should all have a hakapik on the boat in case there is a shot that leaves a seal wounded but not dead, and they therefore need to have a hakapik available to complete the killing. It is the most efficient and humane method, and it seems kind of crazy to try to find something else when it works very well.