winchester tripple 7 209 primer blowback around extractor on prohunter

[TRM-1]

Is anyone having problems with blowback around the extractor on a encore pro hunter muzzleloader? I am using winchester 209 primers made for the tripple 7 and 2 tripple 7 pellets. I am getting a lot of blowback around the slot in the breech plug, which is actually causing piting and corrosion of the extractor and locking lugs of the barrel. I think part of the problem may be with the primers, and part of it the design of the breechplug.  I have had two other encore muzzloaders .45 and .50 and neither of them ever gave me a problem of blowback. Any suggestions?

[TRM-1]

anybody???

[Biff Mayhem]

Contact T/C by phone-only. There are some breechplugs out there that are wearing-out prematurely from new models recently purchased. Not sure if the Pro Hunter plug is the same or included Some defective plugs have enlarged flashholes - some have other problems. T/C will likely replace it for free. 209 primer residue is not corrosive. But since you're experiencing corrosion, then the breechplug sounds like the problem. Ask to speak with a service tech. They are aware of this problem.

[TRM-1]

I have put a call in to T/C left messsage with guy who has helped me in past. hope to hear back soon. Thanks

[slave]

I have more blow by from the 777 209 than I do with the WIN 209 or all other 209 primers I have used except the CCI. Not sure why the primer dose not seal as well, but the crud ring is less of an issue. It looks like a one or the other at this time.

[TRM-1]

I spoke with someone at T/C and they reported the winchester 209 tripple 7 primers were a little smaller and suggested I try the regular winchester 209 primer. What concerns me the most is the corrision on the barrel, extractor, and locking lugs from the blowback.

[Smokepole cowboy]

I also noticed blowback with the T7 primers that did not show up using other primers.

[rks1949]

The best primers I've used yet in my prohunter,are Cheddites. They burn clean,and are sealed for moisture,my buddies that shoot Trap used them allot. They seem to fit the best,and don't cause as much of a problem with the "crud ring".

[Redhawk1]

I spoke with someone at T/C and they reported the winchester 209 tripple 7 primers were a little smaller and suggested I try the regular winchester 209 primer. What concerns me the most is the corrision on the barrel, extractor, and locking lugs from the blowback.

I am using the Remington Kleenbore 209 primers in my Pro-hunter with no blow back. Give then a try, the Winchester 209 primers will work as well but they are to hot and you may start getting a crud ring.

[TRM-1]

I am getting a crud ring with the winchester tripple 7 primers. I am planning on doing some further testing of primers after hunting season ends. I had left a message with a guy at T/C that had helped me when I bought my prohunter (which I had to send back, and which they replaced with a new gun) and he returned my call and told me to check the three rings on the front of the breech plug and make sure the gaps are not lined up(haven't had a chance to check yet) and he is also sending me a new breech plug to try also. I know a lot of the blowback is coming from the slot cut in the breech plug for the extractor, because a lot of the crud is following the extractor down into the slot cut in the barrel for the extractor. after a few shots the extractor gets nasty and stiffer to move. When I was sighting the gun in and shot it more than a couple times I noticed a black residue all around the breech area even around the outside of the barrel and receiver.

[Bullseye]

Intersting this is at the top tonight.  Last time I shot my Encore (standard, not Pro-Hunter) I tested the 777 Primers and had no crud ring.  But I did have a bunch of blowback.  Thought I cleaned the frame good, but when I got it out tonight the gun would not break open.  Finally forced it open.  Locking lugs were rusted, firing pin froze up, Rust and white residue inside the frame.  Steel wooled the locking lugs and inside the frame.  Took the firing pin out and cleaned those pieces all up.  Oiled and put back together.  I have had this Encore for 5 or 6 years and have never had a crud problem like this and I have taken the firing pin out and cleaned before just to check.  If this blowback is caused by the 777 primers, I might just live with the crudring (I will get the calipers out and measure the primers to verify what T/C is saying).  At least I found it before loading Wednesday night for Thursdays hunt.

[slave]

You know I thought I had mic'ed them before but could not remember. I just checked the SE7EN vs the W209. In the lots I have they average the same diameter .2410. The lenghts verry quite a bit in both primers. I know the W209 seals better than the Se7en in my Encore so may it be the amount they expand as they are fired? I do not have any spent primers to measure at this time.

[Ryan A.]

I was at the range today with my prohunter and had the same problem with remington cleabore primers.  Alot of blowback. One delayed fire out of 6 shots.  The primer also wants to go beyond the extractor and then get lodged behind it.  I had to pry it out with a screwdriver.  It shot well when it worked

[TRM-1]

I have never had a problem with it firing only with the blowback. The shorter length might be the problem because of the slot cut in the breechplug.

[rks1949]

I used some Fed.209A's when I got my prohunter. They caused allot of blow back,and it is primer residue,not burnt 777 powder. I can't tell any diffrence in accuracy,no matter what primer I use. I CAN tell a diffrence in the crud ring though. If you are getting true blow back,the threaded area on the breech plug will be pretty fouled up. Some times it is caused by not having the compression ringsd lined up. Here's another post I made concerning this. Hope it helps. Ron        Dave,what powder are you using? Is it getting crud in the threads? One thing you might check is,on the front of the breech plug,there are 3 little rings(compression rings). They have a little open area at the end of each one. You need to clean this area very well,and use some penetrating oil (breakfree,kroil) to clean them,and float the fouling out. After cleaning them,make sure that the openings at the ends don't line up,in other words rotate them so they are at three diffrent locations on the breech plug end. Using a clock face as a refrence, place one at 12, one at 4, and the last one at 8,O'Clock. This is the same system that is used on the AR15 rifle bolts,and unless they are seperated,you will get blow by. Hope this helps. Ron

[TRM-1]

To be honest I really believe it is residue from the primer more than blowback. The threads on the breach plug have been clean other than the super lube. No blowback in the thread area. The residue seems to actually come out around the primer.

[Redhawk1]

Try this, I just ordered one. http://prbullet.com/prohntr.htm