RE: Knight power stem breech plug in a 50 caliber disc rifle??
I am waiting on my KNight Revoluition II with a 30" bull barrel with the power stem to arrive. I was reading on the power stem how it sets off the powder from the front rather than the back and it gives you 5-15% more power.they use this set up on there long range hunter that shoots 2" groups at 200 yards.