Had a "problem" with CCI primers not fireing in 38Spcl handloads, small pistol size. Same worked fine in semi-automatics. CCI large pistol, which I used now and then, in a government model 45ACP never gave problems. I believe that CCI primer cups may have been somewhat harder than Winchester, therefore the problem with 38 caliber revolvers, especially when fired double action.
I normally use Winchester primers for both rifle and pistol.