Several months back, someone posted a thread regarding their normal shot groups going to hell.
This happened to my Knight Wolverine after I around 200ish shots & I found an article by Randy Wakeman discussing the erosion, thus, widening of breechplug flash holes as an apparent cause of this problem. Anyone else experience this?
He suggested changing the breechplug as often as every 100 shots. So I changed mine, and behold... my groups came back together.
However, at 100 shots, per BP, this could become a bit expensive at $40 per breechplug for my new Mountaineer. Love to hear anyone else' experiences or opinions here.
THX jimsmokepole