I would test fire the rifle before fooling around with lapping the barrel. I've seen Green Mountain barrels perform as well as any. What is really important is getting the right bullet. You may want to call GM, if you don't have the numbers, and get groove and bore specs. Steve Brooks can make you any bullet needed.

Hi TimK
What is the model number on the lyman receiver sight that you used.
Did you glass bed the forarm? 
Thanks
Swifty

I have no general comments to offer about the rifle (no personal experience with it, specifically). Steve Durren will be the one to give you actual user info regarding the rifle.

However, I did compete in BPCR Silhouette for over fifteen years. That experience allows me to make an observation or two regarding BPCR's in general.

Make quite sure that the particular rifle is approved for BPCR Silhouette and/or long range. There are specific qualifications that need to be met and these folks have NO sense of humor regarding shooting an unapproved rifle. I have no argument regarding the equipment, it is just that you need to be sure it will be accepted before you spend a lot of money equipping a rifle that will not be allowed to compete. It HAS happened, believe me.

If your rifle has a Green Mountain barrel on it, you will probably find that it's interior should be as good as it needs to be. I wouldn't do a thing to the inside - it's already "Ready". Steve's rifle shoots well (the project rifle) so I expect that your's will (bedding the forend is probably a REALLY good idea).

Sights - if you intend to shoot "Mid to Long range" you will need a vernier tang sight. A Lyman or other brand similar sight will NOT have the range needed to get hits from 200-1000 yards like a true long range vernier sight will do. I can recommend the "Parts Unknown" ( the Ukrainian sights)verniers as well as the Browning on the "low end" as well as the Baldwin and MVA sights on the "high end" (none of these are inexpensive). There are other good ones out there, of course.

At any rate, if you have any idea of shooting past two hundred yards or so, you will need a good set of Vernier sights. I don't recommend the cheap Italian conversion sights. Pedersoli, however, does make a decent sight but you have to know which model is a good one.

Good luck and shoot center!

Dale53

Swifty, I've been shooting the B/C for about a year now, and it's a good rifle for the price. It's not legal for BPCR Silhouette, but is accepted in a few of the other classes. Mine likes the Lee 500 3R and the Paul Jones Creedmore with SPG lube.
Forget about lapping............probably won't need it.
Also, OAL info to touch lands:

  Lee 500 3R = 2.900
Paul Jones    = 2.910

Mine uses a vernier tang (5" elevation) inletted into the stock wrist and the Lyman 17A (.584")

Check over at Graybeard Outdoors; there's a ton of guys shooting and modifying them:

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Pedersoli, made for the 1874 Sharps. 2.260" hole spacing, windage adjustments, perpendicular adjustment.

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It's true the rifle isn't legal for BPCRS, and it's probably for about the same reason that bbls shorter than 21.5" aren't legal for ASSRA.

I.e., someone in authority decided, for whatever personal reason, that he didn't want it to be legal.
JMO, Joe

PS there has been some discussion about petitioning the NRA Silhouette Committee to make it legal, but nothing yet that I know of.

The sight isn't the reason, it's the break-open action. H&R didn't make this action back then, and no other application for legalizing a break-open action has been made under the name of any other maker, so far as I know. Hopefully that'll change.

Maynard of course made a break-open action and it's legal, but it isn't the same as the H&R.
TTFN, Joe

Evidently the NRA needs it spelled out for them since the company names are different. Or maybe the 'snob factor' is at work here, that possibility has occurred to me. Regards, Joe

Guys, this topic comes up  pretty regularly.  I REALLY don't think that the NRA has it in for the Buffalo Classic...this organization wants and needs all the competitor's dollars it can get.  I'd bet that no one has properly petitioned the competition committee for it's inclusion.   

Just for the record:

3.4 Black Powder Cartridge Rifle-A hunting or military style rifle, single shot, originally made for black powder, of United States manufacture prior to 1896 and being typical of the era.  Replicas thereof, regardless of origin of manufacture, are permitted.  Hammer must be exposed. If replacement barrels, stocks, or other parts are used, they must be as original.  No schuetzen-style rifles permitted.  One rifle will be used during all phases of the match.  Examples of permissable rifles are: Ballard, Buck, Bullard, Cole, Farrow, Maynard, Peabody, Redfield, Remington Hepburn, Remington Rolling Block, Sharps, Springfield Trapdoor, Stevens Tip-up, Stevens No. 44, Wesson Falling Block, Wesson (hinged barrel), Whitney Phoenix, Whitney Rolling Block, Winchester 1885, and Wurfflein.  While the following single shot actions may not conform to the exact criteria of Rule 3.4, they are allowed because they conform to the spirit of the competition in form and function, provided the firearms conform to all other configurations of Rule 3.4: Browning Model 78, Browning Model 1885, C. Sharps '75, Falling Block Works, Stevens 44 1/2, and Wickliff '76.  Replicas other than exact reproductions of pre-1896 Black Powder actions as described above and shooting equipment as described herein, must be passed by the Silhouette Committee with the advice of the Black Powder Committee.  It shall be the competitor's responsibility to provide any documentation which may be required to establish that all Black Powder Cartridge Rifle equipment conforms to these rules.

Sorry to bore you with the rules, but there you have it.  The Buffalo Classic is not an exact replica of a pre-1896 rifle.  Your best shot is to petition the Silhouette Committe for it's inclusion under the " spirit of the competition" clause, that I placed in italics above.  Who knows, stranger things have happened...

Greg

Joe, I hear you on that one!  I never meant to imply that I liked, agreed with, or even understood the rules  ...I guess what my somewhat be-labored point was, is that them's the rules, as they stand...but a mechanism is in place for change.

Personally, FWIW, I don't believe ANY ADVANTAGE exists with ANY suitable action.  If it did, everyone would be shooting stainless steel pseudo Farrows.  I've seen excellent (and not so excellent) scores shot with just about anything you can imagine, just shooting weekend matches here in the midwest...

I believe that the single most limiting factor with the BP target sports is a person's ability to craft match-grade ammunition with cast lead and black powder.  After that, learning to deal with the "conditions" that affect these cartridges to a MUCH greater extent than you might expect is the next hurdle...action type and any perceived advantages are way down on my list of stuff to worry about.   

When I first got interested in this venue several years ago, someone on the old Shooter's Talk board told me I was embarking on a post-graduate reloading course...and I ain't nowheres near to graduating yet!  I guess that's what keeps me coming back for more.

Greg