CCI 209M primers and BH 209
07-08-2011, 08:31 AM
#11
Nontypical Buck
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
My Triumph had been shot for a couple of years without a delay using BH and W209 primer. When Grouse45 first wrote about his experience with delay, i was surprised. This past winter, i was using the Triumph quite a bit, and for the first time, experienced a barely noticeable delay. Then days later another. These delay made me sad. The W209 were the only primer that were long enough to make a nice seal in my Triumph.
Examining the breech plug revealed the flash hole had grown to 0.032" from the original 0.029". Seeing this, it was decided to make the cavity in the nose deeper, and cure the flash hole growth with one step.
The cavity is now 5/16" diameter, and 0.35" deep. The vent liner has a flash hole of 0.28". The original depth of the cavity was 0.21". After doing this work the Triumph was shot many more times as the winter waned without any more delay. It is too soon to tell if the modification is a 'fix'. Only time and at least one more winter will tell.
Examining the breech plug revealed the flash hole had grown to 0.032" from the original 0.029". Seeing this, it was decided to make the cavity in the nose deeper, and cure the flash hole growth with one step.
The cavity is now 5/16" diameter, and 0.35" deep. The vent liner has a flash hole of 0.28". The original depth of the cavity was 0.21". After doing this work the Triumph was shot many more times as the winter waned without any more delay. It is too soon to tell if the modification is a 'fix'. Only time and at least one more winter will tell.
07-08-2011, 08:35 AM
#12
Banned
Join Date: Dec 2008
Location: Boncarbo,Colorado
Posts: 9,186
07-08-2011, 08:43 AM
#13
Nontypical Buck
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
It seems to me, there is a reason people mail their CVA plugs away, and pay money to get them modified. It seems to me, there is a reason CVA, and Western Powders are making new breech plugs.
That was seasons ago when my rifle misfired; we survived, and afterward, i learned so much about breech plugs on these forum, from capable and kind teachers.
07-08-2011, 11:58 AM
#14
Giant Nontypical
Join Date: Feb 2011
Location: Colorado
Posts: 9,557
I have no doubt i'm not having trouble, because I have a tight fitting primer, and the BP is always squeaky clean.
With that said. I will get the new CVA/Western BP when it's available. I can't afford to have a slow ignition while hunting.
If I did, i'd be going back to hunting deer with my Winchester 94 30-30, and kick the ML to the curb.
In all my years i've never missed an animal, or failed to find it. I won't put up with it this late in life.
With that said. I will get the new CVA/Western BP when it's available. I can't afford to have a slow ignition while hunting.
If I did, i'd be going back to hunting deer with my Winchester 94 30-30, and kick the ML to the curb.
In all my years i've never missed an animal, or failed to find it. I won't put up with it this late in life.
07-08-2011, 03:04 PM
#15
Nontypical Buck
Join Date: Mar 2004
Location:
Posts: 1,837
I shoot the Win 209's in my ProHunter. Seems like I read some where that the Win 209's are the longest primer on the market. They seem to keep blowback to almost 0 in my PH. Have never had a delay or ftf to date. They are too long for my buddy's Endeavor though and it will not lock-up.
07-09-2011, 05:41 AM
#19
Nontypical Buck
Join Date: Aug 2008
Location: Rapid City, South Dakota
Posts: 3,732
Beins how my rifle went through many many bullets and primers this past winter with this plug, i have no fear of failure whilst using my Accura. This rifle has never failed even when left out loaded and dirty overnight in sub-zero weather. The vent liner currently in the plug is the second one tried, and both are/were perfect.