Hi mate, sounds like you had a good time at the range..
Not bad grouping that either,
your find quite a lot of people new or even not new to handguns target shooting will first of start shooting with the combat arms bent stance, dont get me wrong nothing wrong with that stance but its just not optimum for target shooting, it is best for combat though, As you found out arms stretched out tends to be better for target shooting and you get surprising much better results..
Im the same i get to shoot all types on live round cartridge firearms, but i love my airgun collection and i get just as fun in using them too, plus you can shoot them at home, lol cant beat that a.
Happy Shooting mate..
Some of my favourite guns in. You collection, Umarex Beretta 92fs - Colt Custom 1911 - Walther Lever Action - TM Hi-Capa Custom Build Project - Colt SAA .45 & many more..