In the traditional muzzleloading rifle universe, I would strongly recommend the Lyman Great Plains Rifle in .50 caliber (percussion). I would also recommend adding the Lyman #57GPR receiver sight and the Lyman #17AEU front target sight. This rifle has a 1 in 60” twist, which works well for the patched round balls required in 4-H competition; it is the only rifle you need for all the matches shot in the 4-H National Invitational. Our 4-H club has owned and used several makes of traditional muzzleloading rifles over the years (Thompson Center, CVA, Traditions, etc.), and the Lyman is definitely the best of the bunch, in my experience. They are well made and easy to clean and maintain. These rifles perform equally well with either Pyrodex or black powder.
As a 4-H certified instructor, you can order products directly from Lyman (
http://www.lymanproducts.com/lyman/muzzle-loaders) at a significant discount (40% off on rifles & sights); call their customer service department for current 4-H prices and details on ordering. They generally require a FAX letter of request on your 4-H club letterhead with the listed items you want to purchase, a copy of your 4-H instructor certificate, and another page with a short paragraph description of your 4-H program.
For .50 cal rifles, I prefer the .495” swaged round ball over a lubed 0.018” thick pillow ticking patch for best results. The .490” ball is the most commonly carried ball size in stores like Cabela’s, Bass Pro, or Gander Mountain, so you’ll likely have to order online to get the .495” size. There are many good muzzleloading sites online from which to order.
My kids and I have spent a lot of time shooting our rifles from the bench to determine the best powder charge for each of the distances shot in the various muzzleloading matches (25, 40, 50, 60, 77, & 100 yards/meters). My preference is to regulate the point of impact for each distance by changing only the powder charge and keeping the sights fixed, rather than by changing the sights for each distance. Depending on the rifle (each one is different), this method usually works for distances out to 77 yards/meters, but many (if not most) rifles will also need an elevation sight adjustment when shooting out to 100 yards in the silhouette match. We generally start at 30-35 grain level for the 25 yard/meter distance and work up from there. The maximum powder charge allowed at the 4-H Nationals is 60 grains.
My oldest son was selected for the 2011 Texas 4-H Muzzleloading Team for the 4-H National Invitational; both of my daughters are hoping to be selected for the 2014 TX Muzzleloading Team. Perhaps we’ll see you in Nebraska next year!