Most all of my inlines suffer blow back from the breech plug. You want blow back, shoot a Black Diamond XR... WOW!!

I have also noted a reduction in a hard crud ring with them. The worst inline I have for a crud ring would be my Knight Disc. All of them will get fowling but normally I can load up to three shots without swabbing or suffereing accuracy problems. With the White rifle and conicals, I can shoot all day if I so wish without swabbing or a crud ring problem.

I will be interested to see what your results are...