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Anybody know specifically how Nosler bonds the core and jacket together? Thanks

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Nope. I just know Accubonds bond critters with my freezer. mtmuley

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The bonding is proprietary and they will not divulge any information pertaining to the process.

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Last edited by JD338; 02/07/16.
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So are there different processes for bonding cores and jackets? I assumed that the process was basically the same for the different bullet companies. Well there you go!

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kalbrecht,

Yeah, I know, but am sworn to secrecy.

I know of at least three methods of manufacturing bonded-core bullets.


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Is the Accubond bonded all the way to the tip? I thought I read somewhere it was not.

As a note; in my experience (testing only, have not shot anything with an AB), they are relatively soft and fold back resulting in a narrow front. They end up with ~60% of their original weight. Probably use ABs next season for all my hunting.

Last edited by prm; 02/08/16.
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No, they're not bonded to the tip. Instead the front end is left "loose," so they'll expand approximately like a Partition.

Also like several of the larger Partitions, which have the partition moved forward so they'll retain at least 75% of their weight, some of the larger AccuBonds are designed essentially the same way. The most retained weight I've seen is 81%, from the second 250-grain 9.3 AB I shot into my Alaska grizzly. I killed it with the first one, which went into the left shoulder crease and exited the right shoulder, but the bear turned and started running, and the second one at the rear of the right ribs ended up under the skin on the left side of the neck.

Also have some .338 and .375 AccuBonds in my collection, all retaining over 75% of their weight.


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Appreciate the insight, thank you. I'll likely be using the .338 200gn AB at an easy ~2650, or possibly the 180gn at 2780ish.

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Originally Posted by prm
Is the Accubond bonded all the way to the tip? I thought I read somewhere it was not.

As a note; in my experience (testing only, have not shot anything with an AB), they are relatively soft and fold back resulting in a narrow front. They end up with ~60% of their original weight. Probably use ABs next season for all my hunting.


Based on the ones I've recovered, wouldn't say their front is exactly narrow. IMO, the diameter they expand to is exactly the reason I've recovered them.


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I have yet to see anyone claim Leupold has never had to fix an optic. I know I have sent a few back. 2 MK 6s, a VX-6, and 3 VX-111s.
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Yeah, on average the "mushroom" is wider than on Accubonds, but not as wide as several other bonded bullets.

The widest mushroom I've seen was on a 360-grain Woodleigh .416 that was recovered after a quartering-away shot on a fallow deer doe that might have weighed 100 pounds on the hoof.


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Not sure exactly how they are made, but do they work. Go to bullet in my 6.5.x57 and 6.5 x55 many dead deer. Very accurate and just plain work.

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Originally Posted by Mule Deer
No, they're not bonded to the tip. Instead the front end is left "loose," so they'll expand approximately like a Partition.

Also like several of the larger Partitions, which have the partition moved forward so they'll retain at least 75% of their weight, some of the larger AccuBonds are designed essentially the same way. The most retained weight I've seen is 81%, from the second 250-grain 9.3 AB I shot into my Alaska grizzly. I killed it with the first one, which went into the left shoulder crease and exited the right shoulder, but the bear turned and started running, and the second one at the rear of the right ribs ended up under the skin on the left side of the neck.

Also have some .338 and .375 AccuBonds in my collection, all retaining over 75% of their weight.


I have posted this before but this 225 gr 35 cal weighed 191 gr after hitting a moose retaining 85 % of it's original weight
[Linked Image]

And this 200 gr 35 cal weighed 138 gr (69%) after hitting a lot of bone on a black bear.

[Linked Image]

All the rest of the Accubonds I have shot at game have gone through. My favorite bullet by far.......


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Mule Deer, I know they can be done with heat, basically soldered, or with an adhesive. Is the third method, plating? I have heard of systems that increase friction between jacket and core. That would not really be bonding, but I have been deceived before. wink

Last edited by Dillonbuck; 02/08/16.

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gerrygoat -

Those are impressive, thanks

Jerry


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I've posted this one before. 90 AB from a 243 @ 50 yards. MV=3175. Captured in the 5th gallon jug of water.

<a href="http://s1072.photobucket.com/user/Bbear53/media/90%20gr%20AB-2.jpg.html" target="_blank"><img src="http://i1072.photobucket.com/albums/w376/Bbear53/90%20gr%20AB-2.jpg" border="0" alt=" photo 90 gr AB-2.jpg"/></a>


Still weighed in at 58 gr - 64% weight retention.

Took a young axis buck with one, quartering away. Entry was just behind the last rib, exited through the shoulders = DRT. Bullet on that one wasn't recovered.


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Dillonbuck,

Yep, those are the three methods I know of. Plating is is how Federal Fusions are made, and Speer Deep Curls were made.

Dunno about increasing friction between jacket and core, but several bullets feature jackets that lock at least part of the core to the jacket. They aren't actually bonded, though they can work pretty well, with the prime example being the Nosler Partition. Others are the Hornady Interlock and Speer Grand Slam, which like the Interlock features a ring inside the jacket.


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Great pictures Gerry. I am starting to use more of them lately. That 200 and 225 AB from the Whelen are pretty danged cool. Great pictures.


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I think they are the perfect all around bullet in the .257 Bee. My son and I both use 110 gr. That rear jacket is heavy on the .35 225 gr. I would love to use them in my .350 Rem mag but run into magazine constraints with my Model 7.


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