PDA

View Full Version : Accubond grenade!



Buck8541
11-06-2013, 10:31 PM
6996This was the result of a 150gr Accubond fired from a 300 Dakota Mag at a stated 3500fps. This antelope was shot at a little over 400 yards. The butcher said he had never seen so many metal fragments in the meat. So, despite what Nosler says there is a upper velocity limit.

ddress00
11-06-2013, 11:04 PM
Talk about a hole.....geez

trophyhill
11-06-2013, 11:42 PM
Accubond's fly great out of my 7 mag and have resulted in many a dead deer. never had a hole that big though lol. killed a cow elk with an Accubond too a couple of years ago. 140gr

Buck8541
11-07-2013, 07:45 AM
Trophyhill,

I agree, I use Accubonds in my 280 Rem and 30-06 with great results. The 300 Dakota is my buddies rifle, he loves it, I think he is trying to compensate for something

Colorado Cowboy
11-07-2013, 07:47 AM
Had the same problem with Nosler Ballistic Tips in my .257 Wby on antelope. The are now relegated to varmints only.

llewokj
11-07-2013, 08:26 AM
too much gun for antelope. I use a .25-06 with a 117gr. hornady ballistic tip. knocks them down but doesn't blow them up.

shootbrownelk
11-07-2013, 08:32 AM
6996This was the result of a 150gr Accubond fired from a 300 Dakota Mag at a stated 3500fps. This antelope was shot at a little over 400 yards. The butcher said he had never seen so many metal fragments in the meat. So, despite what Nosler says there is a upper velocity limit.

Nosler Accubonds are nothing more than a Ballistic tip with a thicker jacket, supposedly to prevent just what happened to you. 3,500fps just may require a "lead-free" solid copper bullet out of that .300 Dakota. I have used BarnesX and Barnes TTS bullets for years without the explosive results you experienced. Hornady also has the excellent GMX. Worth a look. JMO

Roboz
11-07-2013, 09:29 AM
Had the same problem with Nosler Ballistic Tips in my .257 Wby on antelope. The are now relegated to varmints only.

I had the same problem in my 257 Weatherby with ballistic tips, since I started loading the Accubonds I have had excellent results on Antelope up to Elk. The ballistic tips blew a hole in my antelope just like the one in your picture.

mcseal2
11-07-2013, 09:39 AM
I'd say that was a freak incident at 400yds. The velocity at that range should have been down to 2594fps according to my ballistics program. It probably hit a rib or shoulder going in and the 30-40% of the accubond intended to shed off the main bullet did so quickly. The rest of the bullet may have tumbled or something else also to create that massive exit. Maybe bone chunks did part of it. I've shot many coyotes at different angles with accubonds in 6.5. .277, and 7mm that hit at much higher velocity than that one would have and never seen a hole like that. Maybe just a bad bullet or just the perfect combination of things on impact to make a mess. That bullet drops below 3200fps at about 125yds, I could definitely see problems on close shots.

Has he shot anything else with this bullet and had trouble?

Tag stew
11-07-2013, 11:40 AM
6996This was the result of a 150gr Accubond fired from a 300 Dakota Mag at a stated 3500fps. This antelope was shot at a little over 400 yards. The butcher said he had never seen so many metal fragments in the meat. So, despite what Nosler says there is a upper velocity limit.
Oh my!!!!!!!!..

Buck8541
11-07-2013, 11:41 AM
No, he normally shoots the Barnes TTSX or the LRX bullets when he can find them. This was just a test to check performance at high velocity. Like I said earlier I use the Accubonds in my 280 Rem and 30-06 with great results. This was the first time I have seen an Accubond do that. The Accubond in the picture is a 160 gr, 7mm recovered from my deer. Muzzle velocity is 2700 fps and the deer was shot at 250 yards through the heart and far shoulder.7001

Colorado Cowboy
11-07-2013, 12:04 PM
7002
Here is what happened with the Ballistic Tip in my .257 Wby. The antelope was 200yds away. Muzzle vel on my load is 3750 with this 100 gr bullet.

Bitterroot Bulls
11-07-2013, 01:33 PM
It doesn't seem really all that bad to me. Antelope are a thin target. The front portion of the bullet likely fragmented the most as it neared the off side, causing the large exit. My guess is the rear portion is still intact and fully perforated the antelope. On a larger animal (like an elk) the fragmentation would have likely happened at a similar penetration distance, which would have caused massive internal damage, but less of a big exit.

BTW, the accubond doesn't just have a thicker jacket. The rear portion of the core is bonded to the jacket as well.

I do think at least a 180 gr. would be a better match for the big Dakota.

Buck8541
11-07-2013, 04:12 PM
Agreed Bitterroot, but this guy is all about velocity in his Dakota. He has even worked loaded up for a 130 Gr Barnes TSX load for it. I have no idea how fast it goes but it should be an interesting Antelope season next year.

jims
11-07-2013, 06:07 PM
In response to CC's comment about performance of Ballistic Tips in his .257 Weatherby, .25 cal Ballistic Tips are not engineered for that kind of velocity. I reload 115 grain Ballistic Tips in my .25-06 at 3100 fps. The box of Ballistic Tips says the maximum velocity for optimum performance is 3200 fps. I shot an antelope a few weeks ago at 170 yards and I was satisfied with the bullet performance. I think Ballistic Tips are okay (not great) if you keep their impact velocity within bounds.

squirrelduster
11-07-2013, 10:21 PM
Looks like shooting a squirrel with 75gr vmax out of a 6br.
Way overkill for the size of the antelope.
Shoot the 200 gr instead. Probably get better results.
I shoot antelope with my 300 win mag and the 180 accubonds and they don't destroy them too bad.

Don K
11-08-2013, 12:03 PM
Well doesnt look like you needed to field dress it as the insides are gone!!!

Colorado Cowboy
11-08-2013, 04:11 PM
In response to CC's comment about performance of Ballistic Tips in his .257 Weatherby, .25 cal Ballistic Tips are not engineered for that kind of velocity. I reload 115 grain Ballistic Tips in my .25-06 at 3100 fps. The box of Ballistic Tips says the maximum velocity for optimum performance is 3200 fps. I shot an antelope a few weeks ago at 170 yards and I was satisfied with the bullet performance. I think Ballistic Tips are okay (not great) if you keep their impact velocity within bounds.

I checked my box from Nosler and also the Nosler web site and could find no such max velocity warning. It seems that they now make a Varmint and big game BT. The Varmint has a thinner jacket.

jims
11-08-2013, 08:38 PM
Yes, there are separate varmint and hunting (big game) ballistic tips. The boxes I have are the big game ballistic tips that were purchased this year. The box has interesting pictures showing the degree of bullet mushrooming with various impact velocities. Minimum stated impact velocity with the 115 grain is 1900 fps and max is 3200 fps. I prefer Accubonds, but I could not find a load that my .25-06 would shoot accurately. I have always found Ballistic Tips to be very accurate.

Colorado Cowboy
11-08-2013, 10:05 PM
I shot 100 grainers that were given to me with the .257 Wby I bought last year. This box was probably 4 or 5 years old. They shot well in my 25-06 & .257. Interestingly the faster I pushed them, the tigthter the groups got.

SansSouci
11-09-2013, 10:39 AM
Bullets are designed to destroy. How much destruction involves velocity at impact, bullet construction, and target.

I once jump-shot a pheasant with an ounce and a quarter of #6. I'm sure every pellet hit the cock because there was just enough left of it to throw it away. What a waste. I was a young pheasant hunter. Had I been wise I would have used an once and an eighth and would have allowed distance between bird and me before firing. It was a costly education.

SansSouci
11-09-2013, 10:53 AM
I have had a few gnarly wounds using 150 grain BT's out of my 7MM Rem Mag. I'm going back (I should have never left) to my .270 Win for deer and almost assuredly elk.

I love my 7MM Rem Mag. It is a fabulous cartridge. But dead is dead. A .270 will destroy hearts & lungs just as surely as will any other big game cartridge.

6mm Remington
11-09-2013, 06:59 PM
Antelope have a hide that I found is pretty thin and prone to opening up like that exit wound, especially if any bone was hit going in or coming out. I shot a pretty buck one year with my 30-06 and 165 gr. Nosler solid base boattail at 500 yards. The bullet hit a rib going in on a shot placed directly behind the shoulder. It expanded well and went out the other side leaving about a 50 cent piece sized exit hole. The left side (entry side) had a hole in it that had to be seen to be believed. There was nothing but a hold that was about 4" from side to side and 2 - 2.5 inches from top to bottom. Ribs and everything was gone! Only thing I can figure is that the bullet hit a rib centered going in and it acted like a grenade and tore the surrounding hide and destroyed a rib or two on either side at the same time. Sometimes bone, hide, and animals just don't look like you might expect from a very good shot placement. It happens. I shot a spike bull another time at about 150 yards right through the lungs behind both shoulders. He ran about 50 yards and dropped. The entry and exit appeared as I would have expected. Performance looked great. When I skinned that bull I have never seen so much bloodshot in the ribs on both sides of this elk before or since. Sometimes it happens.