I did some reading and answers to this question are all over the place. I could not find any verifiable scientific tests and only found one forum that posted some picture results from testing its members did. I included the pictures although I could only get one set to download. After looking at all of this I would say there is a good chance a vest would stop an arrow however it is not designed to do so and some will penetrate especially with a high quality broadhead, i.e. don’t bet your life on it.
Certainly not definitive results but better than pure Internet rumor or speculation.
Here is a post concerning arrows vs. Kevlar by Beastmaster from the ArcheryTalk Forum
Quote:
Originally Posted by TMAX
Two years ago, after our swat team encountered a subject armed with a crossbow, they asked me to do some testing. I used a vest issued to me in 1991 and shot it with Muzzy's, Stinger Buzzcuts, and Montecs from my 72lb Mathews Drenalin with Axis 377 Grain arrows. The Buzzcut got the very tip thru the vest, but it wouldn't have caused a scratch on the wearer. The Muzzy and Montec barely made a scratch on the vest. No trauma plate involved here, just the kevlar vest. I was suprised as I assumed the arrows would blow right thru, but they just didn't. This was only a level IIA vest as well.
Issue here is the number of layers. And, was the ballistic panel stretched out to be similar to one worn on a body? That has a huge difference on the performance results on both the depth of entry and the actual protection provided. That's why the NIJ for it's test uses some sort of clay or other backing with the panel stretched out and affixed around the backing material.
Also - Soft Body Armor back in 1991 had way more layers than it does now.
I'll pick on my old Level II body armor. It had 25 layers of Kevlar and was pretty thick. This body armor was also issued in 1991. IIRC, Body armor issued in late 1999/early 2000 was around 20 layers of Kevlar/SpectraShield or some other aramid. My most current body armor (Level IIIA) has about 20 layers of of Dyneema and Twaron mix, is slightly thinner (about 8 millimeters thick), but has far better protection than what I had before.
More layers for low and slow stuff like our arrows means a greater chance of stopping it. Even if it's cutting it's way in, each layer getting cut means that it's a layer that's slowing the arrow down.
Another forum that I frequent asked this same question enough to where I contacted (earlier this year) Second Chance (well, Safariland) and Point Blank.
Neither company would guarantee protection from a fixed bladed, cut on contact broadhead shot out of a modern compound bow. I do suspect, however, that they won't guarantee protection out of liability reasons more than anything else.
-Steve
Here are couple of posts concerning arrows vs. Kevlar by JD X729 from the ArcheryTalk Forum
I did a test.
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I just tested my field points and Grim Reaper Hades fixed blade broadheads on a Type IIA vest. The first field point I shoot bounced off back towards me and landed 5 yards away from the vest. The second field point I shoot bounced off back towards me and landed 8 yards away from the vest. The Hades broadhead punched through the vest and penetrated 3.5 inches into my Morel broadhead target I was using as a backstop.
The tests were done using a Bowtech Admiral @ 61 lbs with Carbon Express Aramid KV 350s with 100 grain tips with a total weight 430 grains at 10 yards. Last time I chroned these arrows I got around 270 fps.
Pics to follow later tonight or tomorrow, gotta run now.
I shot it with 9mm, .357 Mag and .38 handgun rounds. As well as a 12 gauge 1 ounce slug and a 7mm-08.
It was only a .17 HMR not a .17 Remington that I shot at it, had a brain fart there for a minute.
The vest stopped everything but the 7mm-08 and the .17 HMR, defiantly wouldn't want to get hit with the slug, punched about 3/4 of the vest through my 3/8 plywood target backer.
It blew about a 3 inch hole in the plywood.
The slug by itself would probably do less damage passing through if it didn't hit any bone than all the extra surface the vest adds causing there to be a lot of broken ribs and punctured organs, OUCH.
Didn't even bother trying the 7mm or 300 Rem Magnums, it was obvious what would happen.
I am going to try a .44 Mag next through the pistol and rifle. I'm sure the pistol will get stopped, the rifle I'm not sure whats going to happen.
Ok, here are a couple of pics.
As you will see its been shot up pretty good with firearms first. Did that when I was hunting during rifle season, some buddies wanted to see what would happen. Had a couple of extra and older vests so I figured what the heck, that and I wanted to try it my self.
First pic, after being shoot with 2 field points that bounced off and one broadhead that punched through. I shot the vest when it was dark out and didn't have a peep on the string so the arrows didn't hit exactly where I wanted them to soooo .
Second pic, shows where the 2 field points hit, between the .357 mag and .38, and where the 3 blade Hades broadhead went through.
You can also see where all the firearm rounds impacted, I tried to spread out the rounds. Rifle rounds at 100 yards, 7mm-08 just had a new scope put on it and was just bore sighted. Pistol and shotgun at 50 yards. Didn't want to get any closer I had a close call when I shot Ballistic sheetrock / wallboard last year, had some fragments come back at me , didn't want to push my luck again.
The vest held up pretty good considering they are not designed to take multiple shots.