questions about Great Plains Signature

[Black Jaque Janaviac]

I have been trying to chase down details about the Lyman GPS rifles. And I think I just have more questions than answers.

They offer the guns in .50 & .54 and both Hunter and standard versions.

So what is the rifling twist and groove depth for:

• .50 standard version?
• .50 hunter version?
• .54 standard version?
• .54 hunter version?

 

[FishDFly]

Read the below, found it in Goggle, Goggle is your source for stuff.

Great Plains Signature Series - Lyman
www.lymanproducts.com › great-plains-signature-series


Since its introduction in 1980, the Lyman Great Plains Rifle has been the standard for authenticity and accuracy in a traditional muzzleloader. Lymanis now ...
$1,049.99

 

[erhunter]

I just had seen Track of the Wolf was selling certain calibers for $999. Maybe you want to check them out.

 

[Black Jaque Janaviac]

Read the below, found it in Goggle, Goggle is your source for stuff.

Great Plains Signature Series - Lyman
www.lymanproducts.com › great-plains-signature-series


Since its introduction in 1980, the Lyman Great Plains Rifle has been the standard for authenticity and accuracy in a traditional muzzleloader. Lymanis now ...
$1,049.99

Hah, hah. Good one smarty-pants. I already looked there. The only information I found was that the hunter model has a twist of 1:24". But in other places I am finding the twist rates listed as 1:32, 1:47, 1:48, 1:65, and 1:66. And nowhere am I finding groove depth (1:48 can be a great roundball twist if the groove depth is sufficient).

 

[springfield art]

I have been trying to chase down details about the Lyman GPS rifles. And I think I just have more questions than answers.

They offer the guns in .50 & .54 and both Hunter and standard versions.

So what is the rifling twist and groove depth for:

• .50 standard version?
• .50 hunter version?
• .54 standard version?
• .54 hunter version?

Jan/Feb issue Muzzleloader magazine has Mike Nesbitt's review of the perc. version, and a photo of the FL version. He mentions the twist & groove rates; see if you can find that on line. I'm at the library and don't have magazine with me.

 

[FishDFly]

"Hah, hah. Good one smarty-pants."

You are like a bunch of others, you want other folks to do your research for you.

 

[Black Jaque Janaviac]

"Hah, hah. Good one smarty-pants."

You are like a bunch of others, you want other folks to do your research for you.

Whatever. My point is I already made an attempt at researching this. So as a last resort I thought I'd check in here.

 

[Musketeer]

You are like a bunch of others, you want other folks to do your research for you.

Not necessarily. It sounds like he's looked around online, been unable to find the info he's looking for (or contradictory info, as he noted), and decided to see if perhaps someone here who may already have a particular model of the gun can give him some additional info, or maybe someone else has found some additional info online that he hasn't and can share said info. Search results online can vary greatly, depending on platform, operating system, search engine, exact search terms used, etc. I've also come across info online by chance numerous times after intentional searching turned up nothing. It could be the search engine's algorithm just didn't pick up a particular site or article during it's search. Who knows, but it happens.

 

[Nameless Hunter]

"Hah, hah. Good one smarty-pants."

You are like a bunch of others, you want other folks to do your research for you.

So, what you seem to be saying is someone shouldn't ask people on this forum for information/help regarding muzzleloaders, powder, patch thickness, results from using different loads, etc., etc. Just "Do your on research".
I can easily imagine someone new to muzzleloaders reading your reply and thinking "why am I bothering with this forum..."
If you don't care to answer the question, then don't - or move on and don't read the post.

To the OP, as the "Signature' series is made by Pedersoli, I would bet the specs. are the same as their rifles.

 

[SDSmlf]

I have been trying to chase down details about the Lyman GPS rifles. And I think I just have more questions than answers.

They offer the guns in .50 & .54 and both Hunter and standard versions.

So what is the rifling twist and groove depth for:

• .50 standard version?
• .50 hunter version?
• .54 standard version?
• .54 hunter version?

Twist and bore sizes are listed on the Lyman website. Remember reading a review that stated the 50 caliber Pedersoli made GPR was button rifled (.006” deep, same Lyman website spec), but don’t know if the 54 is button rifled, but likely would be, as the rifling depth is stated to be the same.

 

[azmntman]

Not a damn thing wrong with asking here first. Thats pretty petty accusing him of having others do his research for him. What does asking here count as? Id say he started his research here. If you dont wanna answer move on my friend. Lets not go backwards in being civil here.

 

[springfield art]

Whatever. My point is I already made an attempt at researching this. So as a last resort I thought I'd check in here.

Please go to Pedersoli's website; the specs for all the guns are there!

Not a damn thing wrong with asking here first. Thats pretty petty accusing him of having others do his research for him. What does asking here count as? Id say he started his research here. If you dont wanna answer move on my friend. Lets not go backwards in being civil here.

Yes, I just posted if the fellow goes to the Pedersoli web site, all the specs for guns are there. Thanks.

 

[SDSmlf]

Please go to Pedersoli's website; the specs for all the guns are there!

Yes, I just posted if the fellow goes to the Pedersoli web site, all the specs for guns are there. Thanks.

To get specs for the Lyman Great Plains Signature Series manufactured by Pedersoli for Lyman you have to go the Lyman website, NOT the Pedersoli website. Below is a summary of the Lyman Signature Series gun’s specs from the Lyman website.

 

[Black Jaque Janaviac]

Good grief! I swear, this morning I was on that same website and they did NOT have that table on the page. I don't know how I could have over-looked it, but I did just have my 50th birthday not long ago.

 

[Black Jaque Janaviac]

I don't know if I like that shallow rifling for roundball guns. I think the original GPRs had groove depths of .010".

 

[Zonie]

"Hah, hah. Good one smarty-pants."

You are like a bunch of others, you want other folks to do your research for you.

The whole purpose of the Muzzleloading Forum is to answer questions about traditional muzzleloaders.

As a moderator on this site, I welcome peoples questions on the forum. Even questions that have been asked dozens of times before here.

 

[Grenadier1758]

Read the below, found it in Goggle, Goggle is your source for stuff.

Great Plains Signature Series - Lyman
www.lymanproducts.com › great-plains-signature-series


Since its introduction in 1980, the Lyman Great Plains Rifle has been the standard for authenticity and accuracy in a traditional muzzleloader. Lymanis now ...
$1,049.99

To be sure, not a very high standard for authenticity, however better than most of the "Hawkens" being peddled. But they are accurate on target once the edges of the lands get polished.

 

[.36Rooster]

The real question is what you want to shoot, round ball, or conical/sabot?

If you want roundball to hunt with, go for the slower 1/60ish, whatever it is they just changed it. It was fine the way it was though, but will be fine now.

If however you want conical/sabots, you want the 1/48 or whatever it is..

If you want to hunt with conicals/sabot, and target shoot with roundballs, you want the faster twist, and you can use less powder for the roundballs.

The great plains will not make you unhappy ever. Plus it looks better but that is a matter of opinions. I cannot give you advice on your own opinion.

 

[William Sublette]

To get specs for the Lyman Great Plains Signature Series manufactured by Pedersoli for Lyman you have to go the Lyman website, NOT the Pedersoli website. Below is a summary of the Lyman Signature Series gun’s specs from the Lyman website.

View attachment 62051

Looks like you have to get a .54 if you want a round ball twist.

 

[.36Rooster]

Thats what I have. .54