Author Topic: Lapping old .36cal muzzleloader.  (Read 431 times)

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Offline glshop20

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Lapping old .36cal muzzleloader.
« on: November 24, 2008, 07:39:48 AM »
I recently got an old(no serial # or manufacturer) .36cal perc. rifle.  I scrubbed yhe bore real well and J-B it.  It still seems a little rough.  Would lapping it help?  Could I put lapping compound on a lubed patch and fire lap it?

Offline DonT

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Re: Lapping old .36cal muzzleloader.
« Reply #1 on: November 25, 2008, 04:35:23 AM »
glshop20,

I shot and built ML for years and based on hwat you are saying it sounds like you have 3 possible options:

1. take it to the range and use a heavy pillow ticking type patch on the round ball.  There is one impregnated with teflon that would work or just good old fashion
      crisco as a lube would work.  Shoot 10 rounds down range and recover the patches.  If they are not torn and accuracy is acceptable you are good to go. Just remember
       to use a little extra care in cleaning as the following will get into all those rough spots and eventually they will continue to grow.

2. Have it bored and rerifled to the next caliber up, might have to go to calibers up to get rid of all the pitting.  Also some folks have them bored out and use them as
      smooth bores and find that out to 50 yards the accuracy is acceptable for squirrel and deer (deer only if you go large enough to make it legal and most states have
         different size regs for smooth bore vs. rifles ML)

3. Finally have it rebarrelled.

Hope the above helps...

DonT

Offline glshop20

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Re: Lapping old .36cal muzzleloader.
« Reply #2 on: November 25, 2008, 05:06:30 AM »
DonT,  thanks for the suggestions.  Do you think using multiple patches to increase patch thickness would work.  2-.010 patches to give you .020?

Offline DonT

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Re: Lapping old .36cal muzzleloader.
« Reply #3 on: November 26, 2008, 05:13:02 AM »
Actually I would just look for a thicer patching material, just make suer it is 100% cotton....  Pillow ticking is cheap and comes in a couple of thicknesses.  Just pic up a yard of it at the local fabric shop and take it home and wash it before using it.  That usually puffs it up a few thousands. 

I would advise against using 2 patches as there is the possibility the outer one might separater from the inner one and remain in the barrel.  If smoldering things might get a bit more exciting than you want when you pour the next charge in it.  If it were me I would use one patch with pillow ticking lubed with crisco and see what happened, then decide what you want to do.  How think you can go is going to be limited a bit by what size round ball you are using and the bore diameter to a degree.

It really depends on what you are expecting out of the rifle.  If your plans are to enter target matches with stiff competition like at Friendship, then replace the barrel.  If you are looking for a squirrel rifle with open sites well then you might be just fine with what you have even if it occassionally tears a patch since most of your shots are gonna be under 50 yards.  Same goes for deer as  lot of white tail have been taken with rusted shot out 30/30 winchesters over the years.

Get your powder, caps (or priming powder in the case of a flintlock), some balls, your patching material, crisco and your patch knive with short starter and range rod and head on out to make some smoke.  If a cap lock pop a couple of caps, charget the rifle, a good rule of thumb is use the same number of grains of powder as the caliber so in this case 36 grains of 3F.  I suggest cutting strips of patching material, grease it, set it over the muzzle, short start the ball flush with the muzzle with the sprue up then cut the patch, run the ball down the bore about 4 inches with the short starter, then the rest of the way down the bore tight on the charge.  Cap or prime the rifle and fire at will.  Try and do this over an area that it will be easy to find the patches and look for them after each shot.

Good luck and let me know how things turn out..

DonT