I am not familiar with the Buckhorn. But here is a deal that you can't beat, the Knight Wolverine with value pack for $179. The value pack is a good deal because you will need to buy all this stuff anyway.
Here are the three reviews from the BassPro site:
By HealthDeptHero from Winston Salem,NC
"I bought this rifle the daybefore the season started, took it home and shot it twice out of the box and felt confident in killing a nice deer. The package is pretty complete, all you really need is powder and primers and your ready to go. I didn't want to invest alot in a rifle I use only once twice a year, truly satisfied with my purchase except bass pro dropped the price 20 dollars 2 days after my purchase. Happy Hunting and go get the big one."
Great Rifle, November 7, 2007
By 3generationhunter from Southwest Oklahoma
"Shoots dead-on, right out of the box. Light weight. The accessories are a great addition."
How many times a year do you hunt on average?: 5-10
Overall Rating: 5 out of 5 5 out of 5
"A great gun for a low price. Almost everything you need to get started."
Here is a review from chuckhawks.com:
The Economy Choice: The Knight Wolverine 209
The Knight LK-93 has been a popular choice for over ten years now, with the same basic action as Tony Knight's "original modern inline," the MK-85. The Wolverine was the first Knight to have barrel and receiver made from one block of steel, an integral design now found in all Knight Rifles.
The Wolverine 209 continues on quite nimbly today, augmented by Knight's full red plastic jacket that weatherproofs the action and reduces blowback. Current Wolverines offer the same "factory adjustable for free triggers" found on the most expensive Knights, with a array of configurations very few muzzleloaders can match: thumbhole, camo, youth, and even left-handed solid synthetic stocks, .45 or .50 caliber, and either 22" or 26" blued or stainless Green Mountain barrels.
It has Knight's sub 2-1/2" accuracy guarantee, though most shoot far better out of the box, and less than 1 MOA is not rare. Ian McMurchy's extensive tests showed 1.33 to 1.53 inch average five shot group sizes.
The street prices vary from around $199 to $299. This gun proves that you need not spend a lot of cash to have a reliable, weatherproof modern muzzleloader with a great trigger, backed by a strong USA company with excellent customer support.
For all the reasons mentioned, there is no reason to settle for less than the Knight Wolverine 209, an all-American classic. Some feel that despite its affordable pricing, you aren't settling for less of anything at all, and I can't argue with that.
http://www.basspro.com/webapp/wcs/stores/servlet/Product_10151_-1_10001_96052?cm_mmc=froogle-_-400-3-1-_--1-_-38-897-833-00&hvarAID=froogle&mr:trackingCode=45128B50-879B-DC11-BE2A-001422107090&mr:referralID=NA