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Hornady round-nose bullets verses Hornady spire-point bullets for penitration ability
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I have found that round-nose cor-loks will penitrate better than pointed cor-loks of the same weight in game and phone books. Is this true also of the Hornady line of inter-locks? Thanks
 
Posts: 174 | Location: texas | Registered: 14 July 2003Reply With Quote
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This is not an answer to your specific question about Interlock Hornadys, but is tangential to it...

I have found the same when comparing the older Nosler Partition 200 gr. RN with the newer Partition 200 gr. "pointy" bullets. The RN definitely penetrated more moose, judging by the ones I shot with both. Of course, that could have just been happenstance based on different striking places in different animals. The older Noslers also had a different jacket material, which may possibly have contributed as much or more to penetration as did shape.

There also seems to be a smattering of mentions over the years that RN bullets are less likely to veer from their course into an animal than spire-pointed bullets. That MIGHT make for better penetration in that the bullet would be less likely to tip over sideways. With the increased surface area of a sideways bullet, one could understand why it might penetrate less.

Will be interesting to see if you get answers specifically to your question.

AC

[ 10-02-2003, 22:59: Message edited by: Alberta Canuck ]
 
Posts: 9685 | Location: Cave Creek 85331, USA | Registered: 17 August 2001Reply With Quote
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Apparentlt Round noses seem to hold there line better than pointed bullets.

I use a lot of round nose & flat nose bullets and I reckon they kill better as they make more dramatic wounds, they drag more bone and muscle I reckon, a pointed bullet seems to "sneak" through some times. Just my opinion.
 
Posts: 7505 | Location: Australia | Registered: 22 May 2002Reply With Quote
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I don't know about the roundnose bullets, but I shot a bear head-on with a .338WM,225 grain spire point, the bullet entering the spine from a slightly elevated angle, and between the shoulders. The bullet traveled over two feet thru the spine. It turned the spine into fragments smaller than a little finger. The wound channel was large enough to put your arm into(up to my elbow). I never found the bullet. It travled a pretty straight line.

[ 10-05-2003, 02:10: Message edited by: arty ]
 
Posts: 345 | Location: Michigan | Registered: 09 February 2003Reply With Quote
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JMO, but if ALL ELSE IS EQUAL the spitzers should penetrate deeper, but that is rarely the case. Terminal ballistics is a study of infinite variables, and comparison of things unequal and impossible to replicate, or nearly so. As a general rule, round nose bullets are considered less likely to veer off course than spitzers when navigating tissue. This does not mean it won't happen or course. The one point of common comparison is Sectional Density, which is a measure of the weight behind the diameter. Higher SD is indicative of higher Potential for penetration, but the number changes as soon as the bullet begins to expand, and not in a positive way. The Solids used in double rifles are an example of one approach that works very well, then too, so is the dart fired by the M1 tank. I probably should stop now before I start to babble. [Smile]

In answer to your question, maybe, if the bullets strike at the same velocity. Good luck.
 
Posts: 9647 | Location: Yankeetown, FL | Registered: 31 August 2002Reply With Quote
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Round or blunt noses solids apparently maintain direction better than pointed bullets.In the case of expanding bullets they both deform greatly in very short order and nose shape would not be much of a factor.
 
Posts: 3104 | Location: alberta,canada | Registered: 28 January 2002Reply With Quote
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Of course testing in game can be vary varible but phone books are pretty constant for comparisons. The cor-loks always penitrated about 50% more in phone books. I was thinking they were made with heavior jackets than the spitzers. I wasn't asking whether they penitrated straighter, just farther. Obviously a spitzer FMJ will out do a RN FMJ because you don't nornally expect deformation of the nose.
 
Posts: 174 | Location: texas | Registered: 14 July 2003Reply With Quote
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quote:
I have found the same when comparing the older Nosler Partition 200 gr. RN with the newer Partition 200 gr. "pointy" bullets. The RN definitely penetrated more moose,
I have made the same observation, and it seems to be generally consistent with other makes of bullets as well. That would seem to be contrary to what one might expect, and I can't figure out (from a physics standpoint) why they behave the way they do. I suspect it may have something to do with the center of mass (of the round noses) being farther forward, which may cause them to deform at a slower rate once in the medium. They would also have the center of gravity closer to the longitudinal center of the bullet, which may make them more stable in flight and at the time of impact.

I recall reading an old article written by Finn Aagaard, where he commented on the same thing with pine-board box tests. He had 30-06 220 rn's getting as much (and more) penetration as .338 W.M. 210 and 250 Nosler Partitions, if memory serves me correctly.

This is a great one to ponder upon! [Smile]
 
Posts: 5959 | Location: Alberta | Registered: 14 November 2002Reply With Quote
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A spitzer FMJ won't likely penetrate more than a RN FMJ, because the spitzer will tumble. It's most stable going backward in tissue. When it's sideways it will transfer energy very rapidly, and when it's sideways or backward it may fragment or mushroom, whereas the RN FMJ is more likely to travel straight ahead without tumbling. (It may well tumble also, however.)
 
Posts: 424 | Location: Bristol, Tennessee, USA | Registered: 28 September 2003Reply With Quote
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Originally posted by leo-too:
I wasn't asking whether they penitrated straighter, just farther. .

What they are saying though is that by going straighter "within" the animal or phone book, that translates into deeper penetration.

If you threw one arrow straight into a pool of water and another end over end, which one would go the farthest?

I wonder how a rn at an angle would compare to a spitzer from broadside?
 
Posts: 10186 | Location: Tooele, Ut | Registered: 27 September 2001Reply With Quote
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For 200 to 250 yds, give me a Round Nose any day over a spitzer. Skip the physics, or any other scientific explanation. They just plain work, and you don't hear much about bullet failure with a round nose, unless the person telling it just happens to dislike Round Noses, because of the less point blank range of them over Spitzers.

However, most hunters are convinced that a Spitzer is better, because manufacturers are dropping Round Noses, hand over fist. They don't sell well, and they are making use of the production capacity to make bullets that are trendy, expensive ( profitable) and that sell well, like the SST, or the Accubond etc.

Stock up in your favorite caliber if you love them.!!! I sure am.
[Cool] [Roll Eyes] [Razz]
 
Posts: 2889 | Location: Southern OREGON | Registered: 27 May 2003Reply With Quote
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Round Noses just ooze cool [Cool] [Cool] as do flat points.

I mean load a .416 Rigby with a 410 gr RN Woodleigh and another with a 350 gr speer spitzer and tell me which one has more

charisma
charm

[Big Grin]
 
Posts: 7505 | Location: Australia | Registered: 22 May 2002Reply With Quote
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I tested a 154gr 7mm Hornady RN @,2650fps vs a 140gr 6.5mm Speer Hot Core spitzer @2,700fps in my ballistic moose (ply and wet phone book) They both penetrated exactly the same allthough the Hornady retained a higher % of it's weight.
 
Posts: 2258 | Location: Bristol, England | Registered: 24 April 2001Reply With Quote
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I prefer RN bullet up to about 200 yards then the spitzer takes over...I won't get put into that trap of saying one is better than the other with todays modern bullets...I know that the Nosler Partition spitzer will out penitrate any RN Hornady of the same weight and caliber.

where I like RNSP bullets is on Cape Buffalo in the very heavy weights, but a Barnes X, Failsafe or Walter Hog bullet will out penitrate them.
 
Posts: 42190 | Location: Twin Falls, Idaho | Registered: 04 June 2000Reply With Quote
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Ray:

I would never believe that a Nosler partition will out penetrate a round nose, regardless of current manufacture. It is not knocking the partition as I use them also.

Since it is from a man of your experience, I will believe it will be out penetrated by a partition if the partition is shot by Ray Atkinson.

It is good to have you back on line. How was the hunting trip to Africa. I hope you entertain some of your fans, with your experiences this season over there.
[Cool] [Roll Eyes] [Razz]
 
Posts: 2889 | Location: Southern OREGON | Registered: 27 May 2003Reply With Quote
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