I shot the Knight Disc Extreme MHC and Blackhorn 209 some more today, and it just keeps getting better. I now have 32 shots through it without swabbing, 15 last Thursday and left dirty, shot 17 times out of it today. I also tried some loads in my White .504 with conicals and #11 primer, no joy there, all delayed/hang fires.
Back to the Knight. All shots today were with the Winchester W209 primer as they were last Thursday. Loads last Thursday were weighed on a beam scale to the volume equivelant, today all loads were thrown charges with a volume powder measure at the bench. All groups were shot on 10 power today, load and shoot without waiting between shots. The scope was not adjusted at all today.
First group of the day was with a bullet I had not shot yet, the 240 gr XTP Mag Express and 100 gr B209. The first bullet hit about 2 o'clock in the bull...the second hit abot 1-1/2" above the bull...third came back and cut the first hole at 3 o'clock...so I figured I would shoot a 5 shot group to see if I could put the others in the group...the fourth went back up with the second...the fifth came back down with 1 and 3 for a 2.16" group. See center group G6 in Pic #1.
Pic #1
I wanted to shoot some 110 and 120 gr loads today, so G7, G8, G9 were 110 gr and G10 was a 120 gr load. Next up was the Knight USS 250 gr PBT (Barnes) over 110 grains of B209, best group of the day at .425". See G7 in lower left of Pic #1 and also Pic #2.
Pic #2
Next up was the 250 gr T/C Shockwave over 110 gr B209. This grouped at 1.12", see G8 lower right of Pic #1.
Next up was the 200 gr T/C Shockwave over 110 gr B209. This grouped at 1.52", see G9 upper left of Pic #1.
The last group of the day was with the Knight USS 250 gr PBT (Barnes) over 120 gr B209. This grouped at .731", see G10 upper right of Pic#1 and also Pic #3.
Pic #3
I also wanted to keep track of some sabots and primers. In Pic #4 see the Knight sabots upper left two were with 100 gr, next two were with 110 gr, and the last two next to the primers were with 120 grains B209. The two primers were also from the 120 grain loads with the Knight USS/Barnes 250 gr PBT, see Pic #5.
Pic#4
Pic #5
It is not hard to see what bullet this rifle likes, the Knight/Barnes went sub-MOA with 100, 110 and 120 grain charges. So far it looks like the 110 gr load might just be the best, but will need more samples to determine that for sure. That has to be the best shooting saboted bullet I have ever shot. The powder and rifle aren't too shabby either. I am just beside myself on this whole experience, never has shooting been so easy and fun. I will NEVER shoot 777 in this rifle as long as Blackhorn 209 is around! I know some of you guys are looking for the downside to this powder, sorry to report that I haven't found one yet other than #11 primers are not enough, but we knew that going in.
My new favorite saboted bullet.
Another Pic