Soon 2B a Disk Extreme owner has questions

[artjr338wm]

I should soon be receiving a .45 Caliber Knight Disk Extreme stainless steel fluted barrel, laminated wood stocked version that I bought from a member of this board. It comes with the "Disk eliminating conversion" already done. Although I have a rather large amount of experience with my Encore and my 10ML-II having fired between the them close to 4000 shots, I have absolutely ZERO experience with Knight ML's. I plan on using only BH209 and either 40/200 XTPs or 195/Barnes, and possibly 40/200 SST's, but no SST's until I shake out the other two first. So will what I have learned from shooting my Encore W/BH209 serve me as well in load development with my Extreme, or not?

What I learned from load development with my 10ML-II helped me maximize my Encore's potential, so I'm hoping same will be true with my Extreme. With the cost of powder and availability and cost of certain .40 cal bullets, I would like to keep my load development as brief as possible. So should I approach load development for my Extreme differently than the fallowing?:

Based on what worked best in both my Encore and 10ML-II, I plan on finding the tightest possible sabot bullet combination(s) available to me. Of the two Harvester or MMP does one of the two sabots clearly perform better than the other in 45 cal elites used with the above listed bullets, or as I suspect will I have to let my rifle tell me that. I also plan on progressing load development as I do with my other ML's in I will get some blue Harvesters, some Tan MMPs, try both with bullets on a empty barrel W/BP removed to see which gives the tightest fit and start with that bullet/sabot combo. I will however keep both on hand in case my 1st choice is not working out. I plan on using Federal 209s, but will have CCI 209m's on hand as well, and begin with (by volume) 100 grain charges of BH209 and go no higher than 120 grains if I first don't experience any indicators of high pressure.

So that's my game plan to start.

Now if anyone reading this has any advice they feel will help me such as a "DO" and DON"T DO" list for my model Knight Extreme ML or any good advice in general concerning my model Knight Extreme or Extremes in general I would greatly appreciate you sharing it with me. Especially advice concerning sabots, primers, bullets, or anything else anyone can think of, please share it with me.

Thanks,
Arthur.

[ronlaughlin]

In my experience, the primer that worked the best in Knight bolt rifles, was the W209. It sealed best, and it removed the easiest. The powder i used was anywhere from 90g to 140g Blackhorn.

[artjr338wm]

Thanks for the heads up about the W209. It also works best in my Encore and I have over a brick of them, and BH209 is my one and only powder of choice for use in my non-smokeless ML's. What sabot did you use and prefer most for use with BH209.

Thanks,
Arthur.

[Deleted]

In my Disc Elite I used Harvester blue sabots. With the proper ignition system, which you will have with your set up, you can go a little easier loading w/o ignition issues. Accuracy will be there also. I have always preferred Harvester sabots in all my .45's from Encores, Omegas, Knight and custom smokeless barrels.

Have you checked with Luke at smokelessmz.com to see if he has any XTP's?

[hawghunter]

I don't have an Extreme but my 45 & 50 Elites shoot great with Lehigh conversions and PR dead center bullets or Parker Hydro Shocks. Every barrel is different and there is no short cut to experimentation.

[artjr338wm]

Thanks for all the info it is of considerable help to me. Omega, yes I did and he was out. I did manage to find enough from a member here wiling to sell me some.

Thanks again to all,
Arthur.

[lakeplainshunter]

Do not forget about the 200 gr Bloodline in a HSB Sabot pushed by 120 gr of BH 209.

[sourdough44]

I shoot mostly 200 grn SSTs & Barnes 195 grn saboted bullets for hunting, usually 110 grains of B209 powder. I wouldn't go to tight with your sabot, may become hard to load in the field after a few shots.

[sabotloader]

Apr 18, 2014 19:19:23 GMT -5 artjr338wm said:

I should soon be receiving a .45 Caliber Knight Disk Extreme stainless steel fluted barrel, laminated wood stocked version that I bought from a member of this board. It comes with the "Disk eliminating conversion" already done. Although I have a rather large amount of experience with my Encore and my 10ML-II having fired between the them close to 4000 shots, I have absolutely ZERO experience with Knight ML's. I plan on using only BH209 and either 40/200 XTPs or 195/Barnes, and possibly 40/200 SST's, but no SST's until I shake out the other two first. So will what I have learned from shooting my Encore W/BH209 serve me as well in load development with my Extreme, or not?

Couple of thoughts come to mind here...

1. DISC Eliminating Conversion... Do you know which conversion it is? Is it the old Knight conversion, the newer Lehigh conversion, or the current Knight conversion?

The older Knight conversion is somewhat dirty and somewhat iffy with BH-209.
The newer Lehigh conversion is much cleaner and works very well with BH,+ the vent liner is removable
The current Knight conversion is built by Lehigh but the vent liner is not removable.

The Extreme will shoot just about any bullet very well, with about any reasonable powder load; as long as the barreled action is seated in the stock correctly.

From my 45's which include 1-20 twist and the more common 1-30 twist, I shoot a variety of bullets, Speer 180's, Hornady 200's, Sierra 200's, and Bloodline 200's - they all basically shoot the same. I am shooting 120 grains of T7 and all the bullets ride in an MMP Light Tan sabot. I have also shot the same loads with BH and see very little difference in results.

The gun is just a good shooting rifle.

One added thought, since the rifle you are getting will probably be a 1-30 twist the length of the bullet can be a factor in stabilization. Bullets made from copper or brass that extend the length of the bullet may cause a problem unless shot high velocity with no slippage in the sabot or the bore. They need all the twist they can get. One of the reasons that I use the MMP sabot is because I hunt in such cold weather here in Idaho and the polymer formulation that MMP uses stays more pliable in the really cold temps, aiding the sabot grip of the bore and the bullet. This pliability really helps loading in cold weather also.

The negative... hot weather or hot barrel can be factor when shooting a MMP.