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#7034109 - 01/11/18 08:55 AM Accubond not expanding?
corps2010 Offline
Outdoorsman

Registered: 12/10/12
Posts: 51
Having some issues with some Accubonds not expanding (or so I think).. I'm shooting a .300 RUM @ 3,525 avg. fps with 150 grain handloads. The last 2 deer I've shot, both had pass thru's and went 65-75 yards before expiring. No blood trail (chest cavity was full) and entry hole was the size of a nickel and exit was the size of a quarter on both deer. First buck was facing me and entry was 1" right of center and exit came out his anus. (125 yd shot). Second buck was broadside, entry was front left shoulder, slightly quartering to me, exit was tight behind off shoulder (175 yd shot)... maybe I need to start shooting them thru both front shoulders?? Thinking of switching bullets (Bergers) but curious what everyone's thoughts were on why the entry/exit holes are so small and why I wasn't getting DRT results??

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#7034131 - 01/11/18 09:04 AM Re: Accubond not expanding? [Re: corps2010]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 28315
Loc: Texas
DRT typically means you hit the central nervous system head, neck, spine etc. I have shot several deer/hogs through both shoulders with larger calibers 270+ that dropped dead in their tracks.

I have never used accubonds but used to shoot 140 bt's in my 270. Entry was always caliber in the vitals looked like a bomb when off and a 1/4 size exit my theory was that the bullet shed enough of its weight size and energy that it just didn't tear a huge hole on the way out, but that's just speculation I don't know. At 3500 fps you surely have plenty velocity to initiate expansion!
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#7034132 - 01/11/18 09:04 AM Re: Accubond not expanding? [Re: corps2010]
postoak Offline
Veteran Tracker

Registered: 08/19/09
Posts: 2956
Loc: The Woodlands, Tx
Accubonds expand but stay together. Perhaps quarter inch exit holes are all you can expect. I wouldn't really have a problem with that. Why they were able to run so far is beyond me but I wouldn't switch bullets just yet.
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#7034173 - 01/11/18 09:23 AM Re: Accubond not expanding? [Re: corps2010]
RiverRider Offline
THF Trophy Hunter

Registered: 11/11/07
Posts: 8223
Loc: Wise Co.
I've gotten the same modest entry and exit on deer with 140 Accubonds in my .264, but the entire chest cavity was soup. Never had one run more than 50 feet. No complaint here.
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#7034175 - 01/11/18 09:25 AM Re: Accubond not expanding? [Re: corps2010]
HoldPoint Online   content


Registered: 07/06/09
Posts: 2497
Loc: Plano, TX
I've brain panned 5 hogs with my accubonds this season with 3 shots (two were pass throughs and killed the hog on the backside) and they were DRT. I shot a doe quartering away and it went through lungs and smashed exit shoulder (melted the insides) and she ran 30 yards with a phenomenal blood trail (did not have massive entry/exit holes). I shot a gobbler and it basically trashed the bird DRT. I have yet to test them at long distance but so far I like them. I'm hand loading berger VLD's to try in the off season. I did shoot a lone boar in the neck and it attempted to exit on the front shoulder but never made it out. Pancaked itself into the exit leg.


Edited by HoldPoint (01/11/18 09:26 AM)

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#7034189 - 01/11/18 09:37 AM Re: Accubond not expanding? [Re: corps2010]
TackDriver Online   content
Tracker

Registered: 05/02/14
Posts: 913
I had a 160 Accubond, out of my 7 Mag at 3,140 fps, blow through a 10 pointer, both entry and exit at the crease behind the shoulders, left a 1 inch exit, little blood trail on the start, more midway and found him 40 yards in the brush. It took off like Bolt on a relay. Insides was mushy. A few week later, another 160 Accubond through the ears of a 200 plus boar, left a .40 caliber sized ear piercing on the ear on exit and DRT. I don't have issues with it, but it seems that the Accubond holds up pretty well and mushroomed nicely without grenade -ing inside before the exit like Ballistic Tips do.

Why would you use a 150 grain bullet with a 300 RUM? Go heavier.


Edited by TackDriver (01/11/18 09:38 AM)

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#7034227 - 01/11/18 09:59 AM Re: Accubond not expanding? [Re: corps2010]
Eyesofahunter Offline
Tracker

Registered: 01/11/15
Posts: 650
Loc: Hill Country of Texas
My 2 cents on this is at that speed you are getting expansion but the petals of the bullet are coming off inside the body and what you are seeing exit is the base of the bullet. The animal is dead so result is satisfactory but you might move up bullet weight if you want a bigger exit hole.

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#7034229 - 01/11/18 10:00 AM Re: Accubond not expanding? [Re: corps2010]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 28315
Loc: Texas
So you can get 3500 fps.
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#7034230 - 01/11/18 10:00 AM Re: Accubond not expanding? [Re: Eyesofahunter]
redchevy Offline
THF Celebrity

Registered: 10/25/04
Posts: 28315
Loc: Texas
Originally Posted By: Eyesofahunter
My 2 cents on this is at that speed you are getting expansion but the petals of the bullet are coming off inside the body and what you are seeing exit is the base of the bullet. The animal is dead so result is satisfactory but you might move up bullet weight if you want a bigger exit hole.


I agree.
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#7034238 - 01/11/18 10:05 AM Re: Accubond not expanding? [Re: corps2010]
Texasteach Online   content
Bird Dog

Registered: 01/05/16
Posts: 390
Loc: Ector County
Sounds to me like they are working perfectly. Dead animal, quarter size exit...

Central nervous or breaking bones is your other option. Trail 60 yards or throw away bloodshot meat? Hmmm... I will trail for 60 yards.
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#7034239 - 01/11/18 10:05 AM Re: Accubond not expanding? [Re: corps2010]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 13577
Loc: Lewisville, TX
The accubonds are a tough bullet and designed to hold together. So what's happening is the bullet is expanding, mushrooming out, holding together and penetrating deep and giving you an exit. That's exactly what it was designed for. (I'm actually surprised it's holding together that good with these speeds!!)

The interior of the deer will be mush, since the speeds are so high. But DRT shots often come from CNS shots, or sometimes a good heart hit.

If you are looking for carnage type wound channels and nasty exit wounds, you are shooting the wrong bullet (I can believe I'm telling someone an Accubond is the wrong bullet!!). Berger VLD's or a good soft point will give you those results. IMO, 150 grain is way too light for a RUM. (You have what I call a Ricky Bobby load- "I wanna go fast!") It would not be what I recommend, but...
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#7034262 - 01/11/18 10:18 AM Re: Accubond not expanding? [Re: ChadTRG42]
corps2010 Offline
Outdoorsman

Registered: 12/10/12
Posts: 51
I think you're correct on all accounts. I've used factory HSM ammo in the past using 168 grain bergers and they did decent but would shed almost all their weight and have no exit. (which is what they're designed to do if I'm reading that right). I'm probably going to go up in weight to a 210 grain VLD bullet with my next batch. I'm thinking that will give me the DRT results and an exit would as well. (I think the Accubonds are going so fast that the animal isn't soaking up all the energy the RUM has and punching a hole in and out). I'm open to anymore suggestions??

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#7034280 - 01/11/18 10:31 AM Re: Accubond not expanding? [Re: Texasteach]
Jgraider Online   content
Pro Tracker

Registered: 06/13/15
Posts: 1146
Loc: West Texas
Originally Posted By: Texasteach
Sounds to me like they are working perfectly. Dead animal, quarter size exit...

Central nervous or breaking bones is your other option. Trail 60 yards or throw away bloodshot meat? Hmmm... I will trail for 60 yards.


Agreed.

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#7034304 - 01/11/18 10:50 AM Re: Accubond not expanding? [Re: corps2010]
unclebubba Online   content
Pro Tracker

Registered: 11/07/11
Posts: 1768
Loc: Collin County, TX
Quarter size exit tells me they are expanding. Chest full of blood but no blood trail tells me that they were bleeding out, it's just that they died before the chest cavity filled up with blood to the point of the hole, and therefore did not leak out. If you want DRT results, you need to hit the central nervous system. Try a high shoulder shot. As Chad said, if you're looking for carnage and blowing whole shoulders off, then you have the wrong bullet. Accubonds are designed to expand, but hold together. IMO, you have the right bullet, and it is doing it's job.
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#7034440 - 01/11/18 12:28 PM Re: Accubond not expanding? [Re: Eyesofahunter]
postoak Offline
Veteran Tracker

Registered: 08/19/09
Posts: 2956
Loc: The Woodlands, Tx
Originally Posted By: Eyesofahunter
My 2 cents on this is at that speed you are getting expansion but the petals of the bullet are coming off inside the body and what you are seeing exit is the base of the bullet. The animal is dead so result is satisfactory but you might move up bullet weight if you want a bigger exit hole.


My experience with Accubonds is that there are no petals. These bullets mushroom perfectly, and stay together.
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