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Is a brand new CVA? Accura? Stainless/Black Thumbhole .50 Rifle for $320 a good deal?
I definitely want to shoot BH 209 and don't want to do any modifications. Should I just stay with the TC line up then? Either Omega or Triumph?
I too have found that the Omega is 100% reliable with BH209. My Accura hasn't been. Thus i been thinkin'.
I ordered vent liners from Lehigh on the 7th, and had hopes they would have arrived here today, but they didn't. In anticipation of their arrival, i started the work on the breech plug of my Accura toward making it more like the Omega breech plug.
The plug on the left is a brand new Accura plug, the one in the middle is an Accura plug that has seen many shots, modified to accept a vent liner, and the plug on the right is an Omega plug. The modified Accura plug should closely resemble the Omega plug once the vent liner is installed.
Now, when the vent liners arrive here, i imagine the modified plug may require a little more work to be just right, then it will be off to the range.
paia wrote:
..................................In your top pic, the middle plug started out like the left plug?..................................
Yes it did.
I wouldn't say BH209 hasn't worked out well in the Accura. It has killed several deer so far this season. The thing is, when one compare the results of using BH209 in the Accura with the results in the Omega, one realizes the Omega does it perfectly, whereas, the Accura has had a misfire, and a few hangfire.
It was my opinion, the reason for the success with the Omega was because the breech plug has a deep concavity, whereas, the Accura doesn't. However, maybe it is more due to the shorter fire channel in the Omega. Maybe there is another reason none of us can see. I haven't tried my Triumph yet, but most say it works well with BH209, and it has a very long fire channel.
What i could have done was tried some magnum primer in the Accura, and seen if that brought 100% reliability. I may do that, or i may not. The W209 primer is 100% reliable in the Omega; why can't it be so in the Accura?
I wish the vent liners i have on order would get here yesterday!
I have 2 rifles with what appear to be the same BP. Both my Accura 45 and my Win Apex 50. Neither has ever failed to fire or hang fired using BH209 and 3 different primers. CCI209, CCI209M and Win209 primers have all been 100% and spontaneous ignition.
The primer side (pocket) of the Accura 45 is almost spotless even after 20 rounds and Win209 primers. The Win Apex gets dirty quick and has a new BP. It got dirty with the original too. Obviously it is getting more blowby into the action than the 45.
A 45 with the same 100gr charge as a 50cal should generate even more pressure so i find it a bit odd considering it appears to be the same BP as the Accura 50 and Win Apex 50.
The only other thing i can think of is that i almost never exceed 100gr charges. CVA rates their guns for 100grs of loose as max. I would wager many people exceed this recommendation and get more blow back/carbon into the flash channel.
My Ovation 50 does have a vent liner although they dont call it by that name. I have fired many heavy charges with it. The BP is even totally exposed but primers are almost always spotless when i remove them. Its also has never failed to fire in any way. Primers can be a bit hard to remove though because of the firing pin system gets tight against the primer after a heavy charge.
I really do like the idea of adding the Lehigh vent liner though. It looks like a very well made product. It might be just what my Win Apex 50 needs to shoot "as cleanly" as my Accura 45.
BTW according to Dan at Ramshot .032-.036 is the optimal size for the flash hole and has anyone tried a small wrap of Teflon tape on the primer. Creating a tighter seal in that area should "in theory" help also.
Great thread too, i enjoy the technical side sometimes. Love seeing new ideas. Adding a convex liner to a concave BP makes lots of sense. Seems like the best of getting both good ignition and reducing blowby.
Would you not need a hotter primer to lite BH209 instead of a cooler one?sabotloader said:Hunter8282
If you were to call Don @ Western Powders he would indicate to you there is a minor problem with the CVA breech plugs and BH 209. According to Western Powders some modification will need to be made in the current design to be consistent. The 'flash channel' and the 'flash hole' are smaller than Western thinks is needed to 100% effective shooting BH.
However, if you go against Western's recommendation of a Federal 209A or a CCI-209M and use a primer just a bit cooler in it like a Remington STS or a Cheddite 209 - it will probably shoot great....
The SS Black one was $289.00. They have free shipping often. That is a great deal. Even if they come out with a new Accura you cant beat that price for a great gun. I have the Accura and a new Triumph. That Accura feels so much better on my shoulder than the TC. I havent got to shoot the CVA yet. Just had it a week. Im going to pack it with BH209 and try some 300g Hornady XTP in a mmp black sabot to start off.Hunter8282 said:Is a brand new CVA? Accura? Stainless/Black Thumbhole .50 Rifle for $320 a good deal?
Would you not need a hotter primer to lite BH209 instead of a cooler one?
How does the Winchester W209 do with BH209?sabotloader said:quigley
Would you not need a hotter primer to lite BH209 instead of a cooler one?
The problem with the two hot primers is that they put out such a volume of gas and flash in an instant - it does create a clogging problem if the diameters of the channels are not correct.
Western Powders - will only recommend the Federal 209A and/or the CCI-209M primers. These are the two hottest primerson the market. I personally believe that BH can be reliably ignited with a lesser primer. But, you will not move Western of their recommendation.
It is my understanding the problem with the CVA BP according to the Western folks, is the 3mm 'flash channel' and the .030 'Flash hole' are too small and readily clog up. On occasion and not always you will get 'hang fires' because these two channels are small and do not handle the volume of gas coming from the two hottest primers. In my case using a Remington Nipple which presents about the same diameters - using a Remington STS primer or a Cheddite primer, both of which provide just a bit less volume of gas, fire BH without a problem. I am just not sure of their operation in the colder sub-freezing temperatures. And conversly when I use a Fed or CCI-209m I often do get slight hangfires no matter how clean the nipple/BP is or how tight I have compressed the powder.
Hey FG, that pic of the V2 aint loading on my PC. Whered you find it at? Like to see it?frontier gander said:Hunter, heres the new V2 Accura,
Also the Optima,
They even redesigned the Wolf, added an adjustable stock and even the new finger removable breech plug.
Hunter8282 said:I definitely want to shoot BH 209 and don't want to do any modifications. Should I just stay with the TC line up then? Either Omega or Triumph?
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