Does anyone here shoot a barrel that the Lyman .69 minie fits?
If so, what kind of accuracy have you obtained?
Does anyone here shoot a barrel that the Lyman .69 minie fits?
If so, what kind of accuracy have you obtained?
I shot the lyman 69minnie out of a Armisport rifled 42 with good results. No problem breaking pigeons. Jut couldn't afford the lead and powder.
J. Gaskill
Do you recall what charge worked best for you?
I shoot an original Belgian version of the Whitney Plymouth with a Hoyt liner. I shoot 54 grains of 3 F and it shoots very well. I have medaled with it many times. Recoil is very tolerable. Scott
Thank you for the input.
My Armisport two bander has a .696" bore diameter. So, been shooting either a paper patched round nosed adjustable length hollow base or patched round ball. With the round nosed paper patch <0.9" is about as long as will reliably stabilize and not try to tip. With round ball hardened lead shoots better than soft though a pain to load.
After studying photos of recovered original bullets and seeing the great variety of the lube groove and paper patch designs that were used from 1861 to 1865 it would appear that the majority are approximately duplicated by Lymans mold. So, thought to inquire about what results folks have had with it.
One of the 68569 molds could be adapted to my barrel by enlarging the bands in the mold blocks but I've been researching the designs before going that route. The "wadcutter" minie molds that are made for close range shooting appear to be intentionally as light of weight as can be made to work, the Lyman appeared to be heavier than needed... but there isn't yet a commercially produced Goldilocks mold in between as reflected by numerous of the battlefield relics. So, I've been cobbling together my own to be mid-range in weight.
Again, thanks for the input so far. Appreciate any other info that's forthcoming.
To increase the as-cast diameter on the .69 minie mold, I'm gonna try valve grinding compound on hard cast minies spun with a drill.
Need to increase the size about 0.009"-0.010". Figure to lap, cast a new lap, lap some more, cast a new lap, lap some more...
Any yall tried doing it that way?
I think trying to lap that much out of a mold will get it pretty far out of round and possibly ruin it. Lapping is generally used to increase diameter by very small amounts on the order of .001" to .002" and to smooth up any burrs at the mold half interface to get the bullets to drop out easier. To get .009"-.010" diameter increase it should be chucked in a lathe and the grooves carefully recut deeper. There is someone who does that but I don't know who it is.
The British had a procedure called beagling to increase mold diameter. I don't know how to do it either but you might try to Google it.
You could be right. I'm hoping to cast, lap, cast, lap, cast, lap.... as Popeye would say until I can't laps no more... and get it useable configuration.
The idea being that the newly cast laps will constantly increase the major dimension on the laps, causing any narrower dimensions in the mold cavity to get hit first. If the required increase in diameter can be achieved in this manner it will be interesting to see if the skirt thickness is grossly different from one side to the other.
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