Traditional Muzzleloading on the Cheap

Firearms => Percussion Rifles => Topic started by: peabody on January 20, 2010

Title: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 20, 2010
hello all.

great site you haves here.

really enjoyed , ''whats your favorite rifle'' thread.

mines a .36 buggy , underhammer.

anyhoo. my pop gave me his old lyman great planes rifle, its a fifty caliber.

rifle is in pretty good shape, except the fact that its set in the safe for many years,  [pop shoots an old cva .50 the most, cause its lighter]

on the lyman theres a small screw, in the powder drum ? it is rusted in, i've soaked it in CLP.  for the last week, but still cannot gets it out,

the screw head is a little buggered up, would like to replace it,

but i dont want to strip it off either. what else can i do ?

also.. i'ed like to rebore to .54 caliber, and can you recommend a good set of triggers and lock ?

thanks

peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: big_jake57 on January 20, 2010
Wow, how old is that Lyman ?  In 30 years I don't recall one with a drum ignition! Usually they have the "snail" type.
I'm assuming you pulled the nipple and soaked the inside of the drum/screw with a good penetrating oil, as well as the outside.  I prefer PB Blaster.  Never used anything better.  After that maybe use some heat on it?  (Might wanna  make sure it's unloaded before turning a torch on it ;D )
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 20, 2010
thanks big jake, not sure what to call it,

looks like a round drum coming out of the barrel, with a flat spot, where the nipple screws in.

i have some pbi blaster, i'll spray it down.

thanks


peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 20, 2010
ok !!!  PBI  worked !!!  just like you said,  now ? what exactly ? does that little set screw do ? a set screw for the nipple ?

yes, its an old lyman great plains rifle,  the bore looks perfect, the triggers where a little stiff, took them apart, cleaned em up good with AR15/M1Garand CLP.

and old tooth brush. they working pretty good.

pop gave it to me, it's about ? 30 years old ? dunno for sure. last time it was shot ? was 20 ??? years ago.

pop said once a year, he'ed clean her up, and putt it back,  said i can do what i please,

soooo... we'er kicking around the ideal of reboring to a .54 and better triggers ? the wood looks very good,

dunno ? why pop shoots the old CVA so much, he says he just ''likes it''  its pretty light rifle, shoots real good, but i dont like the loose and floopy trigger on it.

pop's shot a truckload of deer with that old CVA.

anyhoo...  the lyman sure seems to be a nice rifle,

peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Red Badger on January 20, 2010
Nothin wrong with a 50 cal... but instead or reboring her I'd suggest looking for a new barrel to just drop in her if you want to go to a 54
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: voyageur1688 on January 20, 2010
  I would either stick with the 50 or get another barrel for it that is 54. If the barrel is good why spend $ to get it rebored when ya can get another barrel for probably less cash and that way ya can switch from 50 to 54 when ya want. I prefer the 50 myself. As for penetrating oils, the best I have found is KROIL. This one seems to work when nothing else will and in doing auto mechanics, handyman work and working on my guns it has in my opinion surpassed Blaster as the better product. This stuff is aggressive when it comes to rusted/frozen items. My brother and I put it in an old car engine which had been locked up for 20+ years that we know of and after a couple days it was free and ended up running great without having to be torn down and rebuilt. kroil is also the only one I have found that will remove steel bolts that are frozen into aluminum.
Voy
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: big_jake57 on January 20, 2010
Quote from: peabody on January 20, 2010
ok !!!  PBI  worked !!!  just like you said,  now ? what exactly ? does that little set screw do ? a set screw for the nipple ?

That isn't actually a set screw, it's cleanout screw.  It can be removed to run say a pipe cleaner through to clean out fouling from the flash channel. 

Penetrating oils are one of those things everyone has their favorites of, and with the exception of a few, I won't argue that point. Kroil is good stuff as well.  When it comes to firearms, I'd rather use Ballistol than anything else, except for rusted bolts.  'Course thats if you can stand the smell of it, which is even worse than PB Blaster. 
Glad ya got the screw out!

Jake
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 20, 2010
Quote from: JamminJim on January 20, 2010
Nothin wrong with a 50 cal... but instead or reboring her I'd suggest looking for a new barrel to just drop in her if you want to go to a 54



thanks for the replys.... chrrs

only problem i have is ''finding'' a drop in barrel for my lyman, i can find the drop in barrels for the t/c renagade, but ???

looking all over the web, nothing for lyman ?

still thinking . a .54 or better yet a .58 would be wonderfull in my old gun.

ok, so now i know its a clean out screw, got it out and working fine.

thanks guys.

peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Hawken50 on January 20, 2010
 :applause: Midway USA has a drop in 54 cal 32 inch 1in32 twist for Great plains for 142.99...product #548171
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: big_jake57 on January 20, 2010
My brother got a new barrel directly from Lyman a few years back.  Think it was actually more money than a GM drop in though.

Jake
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 20, 2010
Quote from: Hawken50 on January 20, 2010
:applause: Midway USA has a drop in 54 cal 32 inch 1in32 twist for Great plains for 142.99...product #548171



dang ? thanks !!  [i think]  looks like i'll try to jump on that..... [142.99 dont seem to bad of a price.]

thank you.


peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 20, 2010
Quote from: Hawken50 on January 20, 2010
:applause: Midway USA has a drop in 54 cal 32 inch 1in32 twist for Great plains for 142.99...product #548171



thank you.



peabody



edit"   sheesh....i make 13 posts on this site... and you guys already spending my money..... srndr hdslp flwa


looks like a .54 1:30 twist barrel is on its way...... (susp)


from what im reading, 1:30 twist will be a real doosey, with concials....  hntr
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Red Badger on January 20, 2010
Thats what we are here for to spend yur money...  ROFL  now figure out the cost of reboring and you probably find we saved you some money.... My consult fee is 20% of the savings you made...  ROFL  chrrs
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Hawken50 on January 20, 2010
 ROFL Dang Jim ya cuttin in on my action...
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Red Badger on January 20, 2010
 ROFL  And you accuse me of nipping at your jug!
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 21, 2010
Quote from: JamminJim on January 20, 2010
Thats what we are here for to spend yur money...  ROFL  now figure out the cost of reboring and you probably find we saved you some money.... My consult fee is 20% of the savings you made...  ROFL  chrrs




flwa   ha !!! i'll have to be sure to send a check..... cuch


jim, are you an okie ?  i's hatched in claremore oklahoma..... yakyak


but ? really ? i do thinks you guys did save me some money, and yes, it be nice to keep the ol' fifty barrel.

this barrel is a 1:30 twist, .54 caliber. reading about conicals....???

hummmm...no patch. boolit must be lubed ? a wad over the powder ?tell me what ya'll know about conical's,  and what can i expect for power /range

im wanting to use it deer hunting , here in missouri,

should be good out to 75 yards or more. i've hunted with my pop's old CVA, .50 PRB, but never shot anything over 50 yards.

and twenty years ago, i shot a nice buck with this lyman.but it was only 30 yards or so.

anything you tell me helps. i've gotten a little .36 caliber H&A 21'' barrel, buggy rifle, that just set the blackpowder bug infection to a new high.

i love the underhammers, even have a .62 on its way.....someday, wait time is long.

but this old lyman was my dads, i'll always keep it, just wanting to hit harder than a PRB .50

thanks

peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Red Badger on January 21, 2010
Yes sire I is a transplanted OKIE  Just northwest of Tulsa, got 10 acres near Skiatook Lake.... Originally from Wisconsin,  so yup I'm one o' thos e D**m Yankee's ... the ones that come and stay....
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 21, 2010
ahhh...oklahoma, someday i'll go back...

or ?? new zeland , down under....ha.

peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Hawken50 on January 21, 2010
 wtt Da voices say Jim is one of dem yankees that stayed an ifn ya dont watch him real careful he'll sneak down to da creak and git yer jug....lol.....peabody ya can go to www.dixiegunworks.com. Click on mercandise,then on ball and bullets.You can seel all the conicals they have in 54....they have the molds also if ya want to cast your own.Ive used buffalo bullets hollow points in my hawken with good results,just load them on top of the powder.Has a lot more thump at 100 yds than a round ball,course it weighs in at around 395 grains.Even if you dont buy from them there catalog has a wealth of info fer just 5.00.Everything from shooting to building a rifle to tanning hides.
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Red Badger on January 21, 2010
Quote from: Hawken50 on January 21, 2010
wtt Da voices say Jim is one of dem yankees that stayed an ifn ya dont watch him real careful he'll sneak down to da creak and git yer jug....lol.....peabody ya can go to www.dixiegunworks.com. Click on mercandise,then on ball and bullets.You can seel all the conicals they have in 54....they have the molds also if ya want to cast your own.Ive used buffalo bullets hollow points in my hawken with good results,just load them on top of the powder.Has a lot more thump at 100 yds than a round ball,course it weighs in at around 395 grains.Even if you dont buy from them there catalog has a wealth of info fer just 5.00.Everything from shooting to building a rifle to tanning hides.

And I happen to have a LEE R.E.A.L. (rifling engraved at loading) mold and would be happy to sent you a few to test.... just pm me.  They start a little hard but then work great...  William can speak on this he has used some of my work...
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 21, 2010
wow, hey thanks guys...

everything is slowly coming together.


thank you.


peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: William on January 21, 2010
Quote from: JamminJim on January 21, 2010
Quote from: Hawken50 on January 21, 2010
wtt Da voices say Jim is one of dem yankees that stayed an ifn ya dont watch him real careful he'll sneak down to da creak and git yer jug....lol.....peabody ya can go to www.dixiegunworks.com. Click on mercandise,then on ball and bullets.You can seel all the conicals they have in 54....they have the molds also if ya want to cast your own.Ive used buffalo bullets hollow points in my hawken with good results,just load them on top of the powder.Has a lot more thump at 100 yds than a round ball,course it weighs in at around 395 grains.Even if you dont buy from them there catalog has a wealth of info fer just 5.00.Everything from shooting to building a rifle to tanning hides.

And I happen to have a LEE R.E.A.L. (rifling engraved at loading) mold and would be happy to sent you a few to test.... just pm me.  They start a little hard but then work great...  William can speak on this he has used some of my work...

Yep, sure have.  The relatively short bullet lends itself well to middle of the road 1:48 twist barrels like my .54, and the addition of a fiber wad over the powder charge tightens up the grouping to clover leaves, just understand that the trajectory is different than a RB and it will hit lower.  Reduce your normal RB charge and start with 60 grains.
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 21, 2010
well, now... i'll sure give em a try....

my lyman is a .54 in 1:32 twist,   still work ?   or a conical ?


thanks,

peabody
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Red Badger on January 21, 2010
that I don't have any expierence with but if you want a 1/2 dozen to try pm me...
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: William on January 22, 2010
I'd give them a try, but in this case I would start with 65 grains in your rifle.  Since your barrel is more of a fast twist it's going to shoot conicals better than RB, but you can still use them if you keep the powder charges down.  Again, you're going to have to just do some shooting with various projectiles and see what your rifle likes.  I would look at the Ultimate 1 conicals as well, which are all lead and come in various weights so you can match that with your twist rate.  I'll scare up the link and post it here.  Meantime take up Jim on his offer and Happy Shooting!

http://www.prbullet.com/ul54.htm
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 22, 2010
thanks for the link. chrrs
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 22, 2010
oh boy.... read that link.. shows that my twist, wants  the 500 to 535 grain bullets.

yes, i'll start with 65grains of ffg.

should be a heck of a thumper. dntn



Title: Re: lyman GPR , question.. small screw in drum ?
Post by: William on January 22, 2010
Be sure and let us know how she shoots.
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 23, 2010
 flwa




just hope it dont kill on both ends !!!    'shok'
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: Red Badger on January 23, 2010
If I remember right my Lees come in at around 400-450 gn. but I'll send you 1/2 doz nd you can see if your rifle likes them... the mold is only about 30.00 from lee when you can find it in stock...
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: bwhoffman on January 23, 2010
In regards to the "cleanout" screw on the snail and drums of rifles and such...
I was always under the impression and advise from those in the know, that the sole purpose of that hole, was to drill the flash channel into the bore. The screw was merely a plug to cap off the hole.
Removing it to clean the gun is really not nessesary. You will often drop the little screw and loose it, have a hard time trying to find a replacement, bugger the head, strip out the base thread ect.

After learning all of this, I removed all of mine one last time and applied anti-sieze grease to the threads and replaced snuggly. Have not removed since.
I clean in the sink and pump water in/out thru the nipple. I dont even remove the nipple anymore as there has been no evidence to after a check at random time proved my flash channel to be just as clean as the rest of the barrel....clean!

So I 'spose what I am saying is.... the "cleanout" screw is not a clean out screw, but a plug from a machining operation.
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 23, 2010
thanks for that information,  i just now putt anti-sieze on mine.

nipple threads too.


love this new .54 barrel, looking forward to trying her out.

the new barrel came with a new tang, with a set screw, in the center... i thinks ? its for a tang sight ?  like a lyman peep sight ? that would be nice.
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: DandJofAZ on January 24, 2010
Don't use a peep sight...it's only for old tired eyes like mine which can't focus on the rear sight otherwise. But I can still see through a fuzzy circle.
Title: Re: lyman GPR , question.. small screw in drum ?
Post by: peabody on January 25, 2010
tired fuzzy eyes...... hdslp




ha, yep thats me...... chrrs


i always liked a peep,  my M1Garand has one, love it.

but ? a lyman 57 on a GPR ?  would that look right ?