As some of you have probably read,I just bought a new Lyman Trade Rifle in .54 cal. flint. I have not had the opportunity to get out to the range yet but I plan to do so this weekend weather permitting (they're calling for rain)I would like your opinions on what to do with the stock Lyman touch hole liner. I ask this because the hole in the liner seems too small to me. Has anyone had any luck getting good ignition with the stock liner or should I just go ahead and drill it out to about 1/16" before I even try it? Should I order RMC liners ? All educated opinions welcome!! Thanks in advance!!
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Lyman touch hole liners ?
- Thread starter WH .50
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I have had excellent ignition with the T/C liners which are coned inside & out but I can't compare them to anything else because that's all I've ever used until now. Think I'll just drill first and try them,I can always come back and cone them later.Thanks for the help!!ebiggs said:
fyrfyter43
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For the money, you can't beat an RMC liner.
That is an excellent question :grin:. Don't fix it if it ain't broke right ? I have read that most people had reliability issues with the stock liners,that is why I asked for input from helpful people like yourself. So,we have at least one man here having good luck with the stock liner,that's good to know. Thanks for the help!!Richard Eames said:
Drill it out with a #2 center drill & cone both sides of the liner at the same time. Wrap the liner in a piece of leather & put it in the vice& just snug it in good. Just a small cone, it doesn't need much. Put Antiziese on the threads of the vent liner hole & just Snug... it in, it doesn't have to be tight.
I have drilled & coned probably over a hundred Lyman vent liners for people & every single one said it made a Big dif, and it did on the Lymans I once owned.
"Don't fix it if it ain't broke" ???? Well, it may not be broke but it could stand a heck of a improvement, you just may not realize it.
We are speaking of modifying a $ 3-4 vent liner, so it is a cheap easy test that may make a big improvement. Shoot it 15 times, take the vent liner out & shoot the Std. one 15 times. I think you will see a big dif. in ignition relapsed time & less misfires as well
Keith Lisle
I have drilled & coned probably over a hundred Lyman vent liners for people & every single one said it made a Big dif, and it did on the Lymans I once owned.
"Don't fix it if it ain't broke" ???? Well, it may not be broke but it could stand a heck of a improvement, you just may not realize it.
We are speaking of modifying a $ 3-4 vent liner, so it is a cheap easy test that may make a big improvement. Shoot it 15 times, take the vent liner out & shoot the Std. one 15 times. I think you will see a big dif. in ignition relapsed time & less misfires as well
Keith Lisle
This sounds to me like one of those things that just makes sense to do. Just like modern guns, virtually none come glass bedded, almost all benefit from having it done to them, and at worst it sure doesn't hurt them.
Just from reading the various other posts on the subject of vent liners, it is pretty clear from the expert input that slightly larger and coned seems to be a big improvment over smaller and not coned, unless you go too big. For a $4 part, doesn't seem like you can hurt much trying it. I know I will when I pick mine up, or I will find a replacement liner that is already done this way. Thanks for the info guys.
Just from reading the various other posts on the subject of vent liners, it is pretty clear from the expert input that slightly larger and coned seems to be a big improvment over smaller and not coned, unless you go too big. For a $4 part, doesn't seem like you can hurt much trying it. I know I will when I pick mine up, or I will find a replacement liner that is already done this way. Thanks for the info guys.
Billnpatti
Cannon
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I know many have said to drill first and shoot later but I think you should shoot first to see if it actually needs to be drilled. I have a Lyman GPR with an original un-drilled liner and it shoots fine, no lag and no misfires. The larger the hole, the more of the gasses from the chamber that exit through the vent. Too large of a vent hole and your muzzle velocities can vary slightly. Target shooters like as small of a vent hole as possible because of this variation in MV. Shoot it several times first and then if it needs a larger hole because of misfires, go ahead and drill it out to 1/16. But, if it works fine, why drill it? Mine works fine right out of the box with the original factory vent hole.
horseman1977
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I bought a Lyman 54 cal. GPR a couple of years ago and have not drilled out the stock touch hole. It fires everytime (well almost, it is a flintlock). I bought an extra vent liner in case I wanted to drill one out and see if makes a difference but haven't done it yet due to the fact my rifle is very reliable as is.
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Maybe by the time the barrel is slicked up the liner will open up.
Shoot it first. I never altered the original factory liner on my GPR when I got it, and it worked just fine. I finally replaced it after heavy use and a multitude of cleanings as the screw slot became worn. Replaced it with the liners available from TOTW for that rife, and they also work great without modification. A larger hole may or may not improve ignition, but it will bleed more gas and thus velocity. All that said, my GPR does like a relatively full priming pan and is very reliable when loaded as such.
Just to satisfy my own curiosity since I have not shot a “huge” sampling of GPR's. But the few I have shot all behaved exactly the same way, they were awful on the reliability front. Firing only 6 or 7 times out of 10. When they dirtied up it was even worse!
So are you telling me you have a completely unaltered GPR that you would bet will fire 10 out 10 times when you walk outside to shoot it? Just curious. :hmm:
So are you telling me you have a completely unaltered GPR that you would bet will fire 10 out 10 times when you walk outside to shoot it? Just curious. :hmm:
Yes, sir. I do mean that I got essentially 10/10 reliability out of the box. The only problems I have had were due to my own errors and not that of the touch hole size or liner (I.e. Forgetting to change the priming charge after walking through dew-covered swamp grass, not wiping the pan/hole after prolonged shooting, etc.). Given that, I have taken the "if it ain't broke, don't fix it" approach.
