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#7177787 - 12/13/12 07:27 AM Re: Blackhorn 209 failure to fire in cold weather? [Re: alphabingohawken37]
Hydrashocker Offline
Campfire Regular

Registered: 10/04/11
Posts: 318
Loc: Colorado
Maybe this weekend I'll head up to the range, gotta work Sat though, but I can only calibrate my CVA right now. Iím still waiting on my new VDC scope from Nikon. 30" seems really low to me for some reason, and right now I am about 1.5" high at 100 yards. Now Iíve shot straight on at a bucket at 300 with this and found the impact and it was just at the bottom of a 3 gal bucket rim. But I need to get an actual target and measure it out, like I said it was just a red neck shot and I thought it was only 8-9 inches. This was at a new range, so I went up with a tape and actually measured it, as before it was just by eye. Everything looks great and was measured out accordingly, however it's not exactly flat, there is about an 8 degree incline upward to the 300 yard mark, 100 is flat trajectory. Donít think an up hill shot would help myself.

If I get out today I might head over to the machine shop and have both measured at a different facility.
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#7188455 - 12/15/12 07:35 PM Re: Blackhorn 209 failure to fire in cold weather? [Re: Hydrashocker]
colodog Offline
Campfire Ranger

Registered: 09/20/08
Posts: 2123
Loc: North of Denver
I took the Savage and the CVA/Winchester Apex out for a test drive with BH209 today. Winchester 209 primers.
I started shooting with 777 to verify the rifle was still on.
In the Savage, BH209 farted and barely pushed the Thor out of the barrel, twice.
I aimed the barrel down, popped 2 more primers and loaded with 777 no troubles.
The Cva has a tight bore so I shot Powerbelt 348 lead, no hollow point, no copper.
777 worked fine as usual, BH209 moaned a little and after I waited for a minute I ran a screw down the bore and pulled the bullet.
Swabbed the bore and 777 worked again. I tried Winchester 777 Primers too and they also worked fine.
I'll try BH209 when the weather warms a little but today I was not impressed.
Bh209 is $30 for 10oz., 777is $26 for 16oz. and 777 just works.
I can deal with a little crud ring from 777.
Temps today were mid 30s at time of test.


Edited by colodog (12/15/12 07:37 PM)
Edit Reason: add comment
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#7188686 - 12/15/12 08:56 PM Re: Blackhorn 209 failure to fire in cold weather? [Re: colodog]
bigblock455 Offline
Campfire Ranger

Registered: 05/24/07
Posts: 2450
Loc: Boncarbo,Colorado
Apex plug needs some work to work correctly with bh209.

Also noticed you were using w209 primers. They are a bit to cool for the old style cva breech plug.

Clean it out with the drill bit prior to loading?

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#7189438 - 12/16/12 06:49 AM Re: Blackhorn 209 failure to fire in cold weather? [Re: bigblock455]
colodog Offline
Campfire Ranger

Registered: 09/20/08
Posts: 2123
Loc: North of Denver
Yes, the plugs were clean.
I keep the required bit in with each rifles tool kit.
Cva Breech plug


Edited by colodog (12/16/12 06:52 AM)
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#7190597 - 12/16/12 11:25 AM Re: Blackhorn 209 failure to fire in cold weather? [Re: colodog]
bigblock455 Offline
Campfire Ranger

Registered: 05/24/07
Posts: 2450
Loc: Boncarbo,Colorado

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#7195253 - 12/17/12 12:46 PM Re: Blackhorn 209 failure to fire in cold weather? [Re: bigblock455]
Hydrashocker Offline
Campfire Regular

Registered: 10/04/11
Posts: 318
Loc: Colorado
Winchester 209 primers are NOT hot enough. You need either CCI 209M or Federal 209A primers. Also make sure you seat the bullet real good.

I had my CVA plug modified and that helped tremendously!

PS. I still didn't get my range time yet, and I'm trying to find a better way to get a really good measurement on my barrels. The caliper won't reach the inside on the landings because both barrels are hollowed out for easy load. I'm going to have to figure out something like use a divider then measure that?
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#7195338 - 12/17/12 01:09 PM Re: Blackhorn 209 failure to fire in cold weather? [Re: Hydrashocker]
bigblock455 Offline
Campfire Ranger

Registered: 05/24/07
Posts: 2450
Loc: Boncarbo,Colorado
hornady great plains bullet, push it down the bore half way and then push it back out, measure the lands on the bullet that engraved the bore.

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#7200831 - 12/18/12 05:58 PM Re: Blackhorn 209 failure to fire in cold weather? [Re: bigblock455]
Hydrashocker Offline
Campfire Regular

Registered: 10/04/11
Posts: 318
Loc: Colorado
Your full of good ideas!!
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#7201426 - 12/18/12 07:48 PM Re: Blackhorn 209 failure to fire in cold weather? [Re: Hydrashocker]
M99ER Offline
Campfire Regular

Registered: 12/21/02
Posts: 645
Loc: Nor'East USA
Originally Posted By: Hydrashocker
Your full of good ideas!!


that is what is called "Slug(ging) the bore".

Any 'all lead' full bore bullet pushed in, removed and measured lets you know the bore dimensions of your rifle. I recently used 'Buffalo' brand bullets to slug both of my 50 cal smokers. One was .500", the other was .5025"
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#7382222 - 01/30/13 09:20 AM Re: Blackhorn 209 failure to fire in cold weather? [Re: M99ER]
Hydrashocker Offline
Campfire Regular

Registered: 10/04/11
Posts: 318
Loc: Colorado
Ok, sorry to bring this thread back from the dead but I got my Knight KP1 inner diameter measured "Slugged" as you say. Going to get my CVA done but I thought I would post up the results of the KP1.

Well I first smashed a lead maxi-hunter and pulled the breech plug out then pushed it starting from the breech. It smashed in nice and tight but after just about 2-3 inches got really easy and jut pushed right out. What I mean is the ID down by the breech is smaller then the barrel???????

So I got another and this time went down the bore. It was the same all the way down tell about 3" from the breech and sure enough it tightened up. So I pushed it backward out of the bore and measured it with a real nice caliper and lone behold it sat right at .5025", so my first measurement was correct.

If I were to have pushed it the last 3" or so out of the breech it would have been right around .502" to .5015", well I assume anyway. I look forward to do the CVA which I know it's a larger diameter.

So, how could the barrel be different ID guys?
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