Lyman has been slow about putting out information regarding the Great Plains Signature Rifles, but some reports have been trickling in. It is logical that people would have questions, and this forum is a good place to present them.
I don't own a Great Plains rifle (GPR... the old model) or a Great Plains Signature rifle (GPS), and in fact have not had the opportunity to examine the GPS "in person." However, I am interested and I've read what I could find. That chart presented by
@SDSmlf in post #13 provides welcome information.
As noted, Mike Nesbitt wrote a comprehensive review of the GPS percussion model in .54 caliber in the current (January/February 2021) issue of
Muzzleloader magazine. I think it would be worth the cost of this issue just for that review, if you are thinking about buying one of these rifles. Mike does a good job with his reviews. He is one of us. Some of the staff writers for the mainstream gun magazines basically churn out promotional ad copy. Mike's reviews, in my opinion, tell us more of what we need to know, and he does report problems, if there are any.
There was also a very good discussion of the .54 flint version of the GPS which was started brother
TreeMan, right here on this forum. He bought one of the rifles, examined it, took it apart, shot it, wrote some comments, and was really good about answering questions all of us had, with plenty of good pictures. Check it out here:
Lyman Great Plains Signature Series (Pedersoli) Kudos to
@TreeMan , for his patience and good humor!
It appears that Lyman and Pedersoli, working in partnership, "fixed" some of the issues with the Investarms GPR. We wonder if the safety issues that cropped up a couple of years ago might have given the project some impetus. The GPS is a much better-looking rifle, in my opinion, and judging from
TreeMan's comments (with pictures of his targets), the new version gives up nothing in shootability and accuracy. Regarding appearance, here are a couple of pictures for comparison, both from Track of the Wolf. First is the old Investarms GPR:
View attachment 62250
Next is the Pedersoli GPS:
View attachment 62251
What we see on the Pedersoli rifle is much improved wood-to-metal fit, a better-looking and more traditional snail, and
way better carving of the moulding around the lock. One thing you can't appreciate from these photos is that the triggerguard grip rail and scroll have a much more Hawken-like and authentic appearance on the Signature rifle. On the down side, the hammer on the GPS shows more sculpting than the original, which is a slight departure from tradition. Also, it appears that the ramrod pipes (not visible in these pictures) on the Pedersoli rifle are attached on the surface of the underside of the barrel rib, while on the Investarms GPR, the ramrod pipes were slightly recessed, or "cut in." Visually, the difference is you see more daylight between the ramrod and the rib on the Pedersoli rifle than the Investarms. In use, the tip of your ramrod will bump against the thimbles when reinserting it, if the thimbles are not recessed. If the thimbles
are cut in, the ramrod glides in more smoothly when being reinserted. This is a small thing, but it is a difference.
The GPS is not just the Pedersoli Rocky Mountain Hawken with cheaper wood. There are some differences.
A lot of people are griping about the price. I've seen the Lyman/Pedersoli GPS listed by some dealers as low as $849.00. Less than the Pedersoli Rocky Mountain Hawken, but more than the old GPR. If you look at the cost of a custom Hawken from one of the recognized builders, you are looking at something north of $2K. The Lyman/Pedersoli GPS is
not the same as a custom rifle, but it is a little closer, and that is reflected in the cost. It looks like a fair price to me, considering what you get. I've considered getting one, but the deal breaker for me is the length of pull. At 14", its just a little more than is comfortable, and if I pay that much for a rifle, I want it to fit.
After all of this, if anyone still wants a Lyman/Investarms GPR, they are not hard to find on the used gun market. And, if anybody wants a new one, it appears that Investarms may still have them in production, rebranded with a new name:
The InvestArm Gemmer Hawken
Best regards,
Notchy Bob