Sabotloader
I tried loosening the BP out a tad then putting in the primer, it was too tight to do, when I did get the breech closed the BP was almost hand tight as I usually have it. Mabey just one O-Ring would be enough to make a really snug fit, or the fit now is as tight as it can be. I'll try a O-Ring when I get some to fit and see what happens. Does Busta have a ACCURA and that's what he tried it on?
(BP)

Breechplug

I do not believe Busta does have an Accura - his efforts were direct at NEF breech plugs which are a lot like the Accura/Omega/Encore plugs....

Sabotloader
how loose can the BP be and still be tight enough to not let blow-by get through? Or was the pourpose of loosening the BP to see if there was room for improvement?
(BP)

Breechplug

Loose BP - I can not even image shooting a gun with a loose BP. Seen way to many bolts and screws give under pressure when they are loose. I always snug mine up to compress the teflon tape. I just do not want the BP working back and forth at all, so I am not a finger tight person or one that backs the plug off a 1/4 which I have seen suggested.

I suppose for a couple of test shots with a milder load of powder you might be able to get some experiments conducted... Think the best thing is try the 'O' ring under the primer if you can find the right size.

Just take your BP to the hardware/automotive parts store and start testing - get some of the correct diameter and in a couple of different thicknesses...

Mike
I have always finger tightened my BP's, there snug but not tight, it's hard to explain it. It would'nt make a difference in blow back with a finger tight BP would it? You'd think this would give it a better tighter fit in the breech with the Primer, right? Most of the blow back comes from the primer?
It's just once a long time ago I got a BP stuck and had a heck of a time getting it out, I used to really snug em down, since then I just snug em in with my fingers, no BP wrench. I never felt any wiggle in the BP when I did this or I'd have snugged it in better.
I just want to get the most out of the BP, should I tighten it in a little better and how do you know when tight is too tight? I'll get some O Rings tomorrow and try em out.
(BP)

I just had a thought......has anyone ever thought of a 2-Piece BP, one that the primer goes inbetween the 2 parts? It would seal the Primer inside. It probably would be a pain at first and second shots would'nt happen that quick but it seems as if it might work??? And NO I have'nt been drinking! LOL
(BP)

Breechplug

When i tape my BP's I can not even turn them by hand - they go in with a ratchet and are snugged with the ratchet handle... the plug is fairly snug all the way through the turning process as the tape is compressed..... again not tight but sung.

I think it might... this is not a good comparison but, put the lid on a bottle of windex loose - turn the bottle up side down - might it leak? Sure might be possible! Put an engine head on a motor that is suppose to hold repeated compression strokes from cold to warm temperatures, but only moserately tighten the bolts - will it leak??? How about the effects of metal temperature. again poor analygies but you get my drift.

Look at the face of your breech plug - then look inside the barrel at the end of the breech plug threads. Do you see a corresponding face in there. Ideally the face of the pug should mate with the face of the bore in the barrel. Ideally the blow back around the threads should be stopped right where these two surfaces mate.

Have you seen this drawing that UC has illustrated for me?



Next thing I do not want you to think I am telling you how to do it - because there is more than one way to skin a cat - but you might try it one time and see.

There have been a lot of peole that have experianced that same thing - but were you or even them using tape at the time and did the tape go on an in smoothly... And that is exactly why i say it works for me but your results may be different.

Look at this picture - and I have to admit it is not the norm - the tape does not usually come out still on the BP as it does in my Remingtons but it does show how well the threads were sealed...



I hear you and I know what you mean - no one wants to stick a BP...

For me and only me - I do use a socket and ratchet to install the plug - I do snug it up with the socket and ratchet to the point that I feel I am compressing the the tape on the nose of the plug but not tearing it. To check this after the plug is install I shine a light down the barrel. I should see tape all the way around the bottom of the barrel where it has been compressed face to face. That is why I wrap over the nose of the BP. Again works for me but... it has taken me awhile to develope putting thetape on correctly and the feel of installing it.

None of this has anything to do with the blow back - back up the middle if the BP - that is another different game...

Wish this made as much sense to you as it does to me - actually wish I could just drive over and show ya...

There is a two piece 209 unit built for sidehammers - the name of the device eludes me at the moment (old timers disease) The closet thing to it for inlines is something like a 25acp conversion... which uses a prime and a shell casing... Wish I could show you how that works in my Omega - would not be as effective in a break open though...

Sabotloader,

Is that your Remington"s Breech plug in the last photos?

Breechplug,

Because the threads on the breechplugs are relatively course threads, Just being a little loose is several thousands of an inch. The o-rings used in the above mentioned posts are available at Lowes in packs of 100 IIRC. they will be found as faucet repair parts I believe. Your rifle, if it has looseness to the primer pocket, the o-ring would make a good seal. from what I have read on GB outdoors they last a long time also.

Donot run with a loose bP, this will allow gas cutting of the threads to get started, Once this starts the BP will be ruined fast and there is a good chance that the thread internaly in the barrel will suffer also. Grease-oil-tape, in/on the threads of the BP act as a sealant, yes even a film of oil.

Notice on Sabot loaders shown BP above the threads do not go all the way to the face. This is important and has a purpose, if there is gas leakage at the sealing surface( and I asure you there is on a naked BP, SLs tape helps stop it) This gas leaked will be Hot and very High Pressure, The small area of no threads is an expansion chamber (for a lack of better terms), this small area will allow the temp of the leaked gas to cool some and bleed off pressure slowing them down minimizing the gas cutting and erosion to the very important THREADS.

Ken

Screwbolts

Yes, that is one my Rem BP's. And as I said The Remingtons are the only ML that the tape usually comes out intact and still on the BP.

I know some have the XT speed BP and since I use the Teflon tape on them I put a picture on.
The thing I found thats different is that I need to spray the Teflon with Birchwood Casey synthetic oil after I stretch it on to be able to operate the insertion and extraction of the BP with bare fingers.
It is not necessary with this type BP but it sure makes clean up a lot easier. The BP shown are from my Triumph and my Endeavor encore, the Triumph still has the home-made Savage type vent-liner the Encore Endeavor has the Lehigh, the Triumph has the vent liner backed up a couple turns so it is visible. I found making vent liners a painstaking job and not worth it when you can by then for about 5 dollars. Although I have never burned one out if it did [matter of time] even though they are much harder than a breach plug it is simple to replace them and much cheaper than an XT breach plug. It is also nice to take them out when doing a thorough cleaning, polishing the flame channel also helps keep the carbon form sticking.