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Here’s the new beauty with the new sites! I’m assuming I can brown or blue the rear sight?
 

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Stykbow

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@Loja man, I’d try a thicker patch to see if that helps it. The ones I settled on are either .020 or .022. I’d have to remeasure to be sure, but that helped mine. I’m shooting a .490 ball as well. It’s not hard to load with that combo at all. Like the new site tool.👍
 
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@Loja man, I’d try a thicker patch to see if that helps it. The ones I settled on are either .020 or .022. I’d have to remeasure to be sure, but that helped mine. I’m shooting a .490 ball as well. It’s not hard to load with that combo at all. Like the new site tool.👍
Are you buying premade patches in that thickness? Or cutting your own? If buying who are you getting them from?
 

Stykbow

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@Loja man, I got it at my local Walmart of all places. I bought something like a half yard for less than 5 bucks IIRC. I just checked it and it measures .022, but will compress down to .018. It’s off white with no pattern 100% cotton ticking. I just went in with my calipers and started checking the bolts till I found something in the thickness I wanted.
 

edw.marshall

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There are a number of Lyman GPR users out there including me and as fall is approaching. I think we should talk a little about our guns . This is one of the few production guns that looks kind-of like the Hawkin profile that we all love. When I got back into Black Powder 5 years ago this was the only reasonably priced "Plains Rifle" that I could find. Mine cost about $500 back then and although not perfect is a good shooter and a robust design. The new Pedersoli GPR's look even better than the old Investarms ones did and are a bit more expensive but reasonable compared to any kind of simi production gun.

My hunting load is a .530 swaged ball ,110 grs. of Graff FFF, .015 TC pre lubed patches and CCI or Remington #11 caps. Although I haven't killed anything but paper with it , I love to carry it around in the woods.

I would really love to see what some of you guys have done with the kit built version. So post about your GPR , add pictures , tell us what you like , and lets get excited about Fall which is right around the corner.
I’ve had my GPR .54 for 34 years & has been my favorite rifle. it still shoots great & I would never part with it.
Here are photos of my GPR & my Pedersoli Rocky Mountain Hawken.
 

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So the new to me GPR came in today! It was a slow day on the job so I came home early and went shooting!! It seemed to like 60-70 grains of powder! But it was shredding patches! :-( The target show my groups at 25 yards off a rest. Groups opened up to about 5” diameter at 50 yards… hoping a little bore polishing will help with the patch situation..
So the factory sights aren’t as bad as I had feared. I will probably replace them thought since the rear sight has about a 1/16 wobble left to right! Unless some of you know a easy fix for this?
Aaron
You did not mention the powder you used.
 
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Was able to get the new sights on the plains rifle yesterday and take it back out to the shooting pit! Also mid week rand a cleaning patch on jag with Braso on it up and down the barrel real slow with my electric drill. Hoping to smooth out any rought edges in the barrel. Had a thill bobber light ordered with my sights. Droped it down the barrel and didn’t see any roughness. Yet it was still shredding patches. It definitely was shooting more accurately at 50 yards though. Yet still only shooting probably about a 3-4 inch group off of rest.
It didn’t seem to affect accuracy whether I was using 60 or 70 grains of triple 7FFFG. .490 round ball with pillow ticking .018 patches.
Target is at 25y off bench. Had to drift my sights a little and file the front blade down.
Whoever browned the barrel on my gun remove the most of the manufacture information off the barrel. I think I can still make out a little bit of Invest arms though.
Any suggestions from you other great playing shooters?
If you are in a hurry, get the polish below, a bore mop and then repeatedly run it the full length up and down the bore about 100 times. It will take out the rough edges.


 
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I'm trying to figure out how old my GRP 54 caliber B.P. rifle is. could you tell me the serial num is? I have a 166830 if you dont want to post it i understand you could email it to me [email protected]
There should be a date code, probably two letters in a box on the barrel (see example below). If you can post those, I can tell you the year of manufacture.
 

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There should be a date code, probably two letters in a box on the barrel (see example below). If you can post those, I can tell you the year of manufacture.
There should be a date code, probably two letters in a box on the barrel (see example below). If you can post those, I can tell you the year of manufacture.
It has an AM on the barrel. Thank You
 
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It has an AM on the barrel. Thank You
That would be 1984, Bro.: William. I am attaching a chart which shows past and future Italian firearm date codes (see picture below), for future reference.
Bro.: ‘Poet (PM - KY, Currently in the East in NC)
 

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Like others, I never cared for the factory sights on my GPRs. I replaced all of them.
GPR Sights 002.JPG


GPR Sights 012.JPG


All of my GPRs (and my Plains Pistol) shoot well with a .530" ball and a .018" pillow ticking patch lubed with Trappers Pure Mink Oil.

I use GPRs for both big and small game. I built the gun in the following pics from a kit. Out of my GPRs it sees the most use.

Snowshoe hares
54 cal GPR Snowshoes and Grouse 063.JPG


Grouse
54 cal GPR Snowshoes and Grouse 081.JPG


Whitetail
2015 Doe Lyman GPR and Roundball 001.JPG
 
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Well I picked up some Cotten ticking and cotton canvas today. I think the ticking is .020 and the canvas is a little thicker. So next range trip we’ll see how it shots!
 
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