Super Vel bullets were sold as reloading components. I still have a partial box of the .38 110gr left from the old days. The diameter marked on the box is .3565.
I have chronoed CorBon .38 spl 110 gr hp ammo. One box was marked 1300fps and did make 1300fpr from a 3 inch model 65. The other box was marked 1250fps and made 1200fps from the same gun. Dean