I had a problem with the breech plug sticking when shooting the T-7 (was using the knight greese before ) and T/C sent me a tube of the super lube and I have used it and gorila greese since and have not had a breech plug to freeze since even using max loads of T-7.
You may want to try the new sst and shock wave,it has shot very good for me in 4 different rifles.