I have a Glock 23 in 40 SW and lately bought a conversion Wolf barrel 40-9mm. I love that barrel. It is as accurate as I need it to. Some guys at the range also told me that they have a similar one and that they use it to shoot lead bullets (i.e. unjacketed).. I don't reload yet, but I heard that lead bullets are much cheaper to reload than regular jacketed bullets for target practice.