Blackhorn 209 and Knight Disc Extreme

[beancounter]

Okay here is the setup. 80 grains blackhorn, 250 grain Barnes PBT, and Remington STS primer. Used the disc breech plug. This is first time using blackhorn so I started light. Not chrongraphed but bullet did hit bullseye at 50 yards. I was satanding behind spotting and my son was pulling the trigger. I was using my fingers for hearing protection and it sounded like a primer going off with no charge or bullet. Lots of unburned powder in the barrel. Should I change the breach plug to the straight 209 without with out the disc? Any other suggestions or observations ?

 

[trealtree]

When you pushed the bullet down the barrel was it loose or tight?

 

[beancounter]

It went down fairly easy on a very clean barrel

 

[sisko]

The Blackhorn 209 website states to use standard shotgun primers only. Is a Remington STS primer a "special" muzzleloader primer?

 

[beancounter]

No it is not. From what I have read in various places it is a primer that works good with blackhorn 209

 

[trealtree]

My omega is very hard to load. I have heard that if it is easy to load some people get misfires. I would not worry about that until you changed to straight 209 without disc.

 

[sisko]

beancounter, thought I was on to something. I have no experience with the Blackhorn 209 just what I have read and researched.

 

[Howa]

I don't think the disc is the problem, or the STS's, That bullet/sabot combo better be tight going down the barrel or you're gonna have trouble, I've been there this summer myself. I'd recommend a bigger diameter sabot, I'm using the harvester muzzleloading crush rib black in one disc extreme, but had to switch to the crush rib red in the other, it really does make a difference even between guns.

 

[buckhorn40]

No it is not. From what I have read in various places it is a primer that works good with blackhorn 209

You are exactly right. Blackhorn recommends the STS primers with their powder.

 

[Buccaneer]

Beancounter - I am somewhat of a Blackhorn veteran with a couple cans under my belt. The bullet/sabot combo needs to be a tight fit and well compressed on the powder charge. I had missfire issues with loose fitting sabots, but it goes bang every time with a tight load. I am shooting a Knight rolling block .50 with 110 grains Blackhorn and the Traditions 240 grain XTP "Hunter Sabot" combo.

 

[beancounter]

What primer and breech plug are you using.

 

[Buccaneer]

I am using the Winchester W209 regular 209 primers, not the 209's designed for 777. I wanted to try the CCI Magnums but could not find any. The breech plug on the Knight KRB is the "domed face" breech plug which is theoretically inferior with Blackhorn to the "recessed face" design on the Disc Extreme. Again with the exception of the loose fitting Hornady 300 grain SST/sabot combo I am getting no hang fire issues. (The Hornady SST combo with 85 grains 777 / tripple 7 209's and disc conversion on my old Knight American Knight shoots like a dream.)
I would like to drill out the flame channel hole in the KRB breech plug but I have not read of anybody doing this.

Reference - http://www.hpmuzzleloading.com/Technical6.html
Blackhorn Primer Data - http://www.hpmuzzleloading.com/Technical3.html

 

[beancounter]

I also emailed this to Knight. Makes you wonder if failuer to adpat is part of the reason they are going out of business. This is their response.

The flash hole would be the same. The Blackhorn doesn't work very well in most of
our rifles, sorry. To me it would be worth going to the Pyrodex Triple 7 FFg powder.
The flash holes of the other style rifles, are a bit larger then ours. and we don't
recommend drilling out the hole any larger in our plugs.

THANK YOU,
Jeff Dinwiddie
Knight Tech Support
641-856-2624
21822 HWY J46
CENTERVILLE, IA 52544
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[beancounter]

As ras as the breeh plug Buchanner are you using the one with the disk or the one without.

 

[Tiny]

On those Barnes were they the EZ loading type with Blue sabot I think?

Ran into a guy last fall that was haveing trouble getting them to shoot well for him and he to had pop-booms,don't remember what powder he was using though.

 

[Buccaneer]

Beancounter - The Knight KRB does not use the disk arrangement. The 209 primer fits in a pocket in the back of the breech plug. With the rolling block trigger/hammer assembly you can not use a disk style breech plug.
As for Knight's answer to your question, clearly now I know why they are belly up. The Knight Long Range Hunter works perfectly with BH 209 and so do any of their disk guns with the recessed face breech plug. The only certainty is to assure a tight fitting sabot load with good compression on the powder charge and you will not have problems.

 

[tnclayboy]

I have a knight longrange hunter 50 cal .I used the blackhorn 209 for the first time today . I shot 110 grains with the 260 gr havester pt gold bullet with the crushed rib sabbot and the remington shot shell primers. I only worked on 100 yd shots today . It performed well for me everytime . after addjusting my scope alittle from the tripple 7 and different primers that i used last year. it proved to be a tack driver. three shots touching each other from 100 yds. I am now ready to back up and practice longer shots. Hope you figure out youre problem .ps my bullets were not hard to start but snugg.

 

[beancounter]

Yes the were

 

[beancounter]

I think I will get some harvester sabots and try them with the barnes bullet with both the disk and non disk breech plugs.

 

[tnclayboy]

I did read a review where the auther did that and it inproved accracy ,but he didn't mention youre problem

 

[beancounter]

Clay which breech plug you using

 

[tnclayboy]

Clay which breech plug you using

the one that uses the disc. went out and stocked up on disc today