If anyone is unfamiliar with the specifics behind the concept, Google Dr Ed Ashby's studies. It's a good read and he did extensive research, specifically on large and medium sized African game.
In a nutshell...the single bevel causes the broadhead to "turn" as it cuts through an animal. From my experiences on whitetails, this is true. The turning creates a signature "s" cut through the animal and actually cuts more tissue than a 1" wide head normally would.
Buy Dr Ashby's main point is the bone breaking ability...it's a c.o.c. head with a "tanto" tip which acts as a chisel on impact and the physics of the turning head splits bone.
While I've never impacted a leg or shoulder with one, the in and out rib hits are pretty impressive...blows em up. Granted, deer ribs are not much of an obstacle.
But, Dr Ashby intentionally shoots elk, moose, and African critter legs, scapulas, what have you...with remarkable results.
Reach your own conclutions.
They've worked real well for me, but my only knock on em is they can leave a minimal blood trail on marginal hits. Example: hunting with a 52lb recurve 2 years ago, I shot a buck at 24 yards...feeding head down, with a fairly sharp quartering away angle. I hit farther back than I wanted and feared a gut shot. He blew outa there and ran about 75 yards circling right to left before stopping to look back my way. After a few seconds he ran ahead into thick blowdowns out of eyesight. After a wait I climbed down, found my arrow burried in the ground...2117 aluminum with a 175gr. Grizzly 2 blade single bevel. After a few hours I went to look. Other than the shot site, I couldn't find a drop of blood. But, when he took that last run he only made it about 10 yards.
Upon autopsy, the angle did hit gut, through the center of the liver, the back half of the far lung, and out. The "s" cut through the liver was big and wide open. The lung was also a wide open wound. The gut too...icky.
I hit no arteries or anything else to really pump out blood, but he was down in seconds.
I think the lack of blood was more due to the hit than the broadhead, but they're designed on a 3 to 1 ration of length vs width.
Anyway, I like em for my recurve and longbow but if I was huntin only deer with a compound I'd prolly look elsewhere.
But, a coworker took a buffalo with a 70lb compound and Grizzly heads. Remarkable performance on a BIG animal.
Draw your own conclusions.
Thanks rick I'll save what you wrote. Good info
I shoot Grizzly...both 155 and 175 grain. They're a snap to sharpen with a KME jig and stone, quiet, and fly great. In my older years, I like sharpening...kinda therapeutic.
I also shoot right wing feathers, so you wanna order accordingly. They come beveled right and left wing. No biggie really, but the proper feather-bevel configuration helps in the "turning" effect.
At 3Rivers single beveled are usually much cheaper than 3 blade and will many times come in sets of 6 rather than sets of 3.
I'm not concerned myself though, between Grizzly, Woodsman, Zwickey, and old Bear greenies I'll never need to buy anymore. But that said, I do love to tinker about and try different stuff.
Here's a pretty radical looking one.
"There is absolutely no wind planing. Badger Broadheads continue spinning through the target, retaining kinetic energy longer for deeper penetration."
I was answering a question on single bevels and qualified my experiences of being a stickbow guy. I also noted if I shot compounds, I'd prolly look elsewhere.
To each their own, eh? There's a myriad of broadhead choices out there to fit anybody's equipment or application.
