Pistol bullets does not need much stabilization compared to rifle bullets where the center of gravity is close to the tail of the bullet rather than the front part... On the other hand the faster the bullets spins, the better penetration is...
I will get the magazine, because it is interesting to read the article, but with all my respect to Mr Metcalf, some 3-4 years ago he wrote that on S&W, M&P when you pull the trigger it additionally loads the striker before release it, which is incorrect, M&P's striker is fully loaded by the cycle of the gun... I did send him an a nice e-mail asking about it, stating a video by AGA where you can clearly see that striker does not go back when the trigger is pulled but did not have any respond... Not like I was expecting one... It wasn't very important anyway...
Μολων λαβε !
Florida Glockers Club #1964
Калашников Клуб №1000