Harrypirini, I really like your question. Later, I started wondering if maybe you’re asking a different question. Would it be possible to be part of a pacifist group but be the guy that knows how to use guns and ammunition?
Why not be that guy, if you want to be? It’s your choice.
You pacifist group might not understand because you are violating a core-belief of the group. You could face peer-pressure against gun ownership… But you could quietly go about getting some experience using guns. You could purchase extra equipment and ammunition for the whole group… Or not. You could model responsible, non-aggressive gun ownership and help the group see guns as just another tool.
Why not give it a go and see what happens? You could always back-peddle if the group pressure becomes too much… Or you could find another group that is more like-minded.