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In the two rounds you mentioned the interlocks will give excellent results. I have shot deer with both the 130 and 140 gr in my 270. The 139 gr has done well for me in the 7x57 as has the 154gr either SP or RN for my friend. Not a magic bullet but certainly a well constructed bullet designed for what you are wanting to use it for.

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Thanks again to all that have replied.

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southtexas,

The best I can recall is Hornady introduced the Interlock feature around 1980. I was using pre-Interlock 150-grain .270 Spire Points in 1977 for sure, and know my wife started using 130-grain Interlocks when she first started shooting a .270 around 1984.


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I started using Hornady bullets in 1968, yea I know I'm older than dirt but not as old as Ingue.

I prefer the older pre-interlocksfor deer and antelope. They seem softer and open wider than the interlocks. I buy them anytime I see them at gun shows. It seems like the SST's are a lot like the old pre-interlocks.

Actually bought 200 139 7MMs here from TATELAW

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Originally Posted by Mule Deer
southtexas,

The best I can recall is Hornady introduced the Interlock feature around 1980. I was using pre-Interlock 150-grain .270 Spire Points in 1977 for sure, and know my wife started using 130-grain Interlocks when she first started shooting a .270 around 1984.


Thank you.

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Interlock Spire Point (not the boattail). It also tends to be the most accurate bullet in several of my rifles.


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Originally Posted by Mule Deer
southtexas,

The best I can recall is Hornady introduced the Interlock feature around 1980. I was using pre-Interlock 150-grain .270 Spire Points in 1977 for sure, and know my wife started using 130-grain Interlocks when she first started shooting a .270 around 1984.


John did you see much of a difference in performance once they added the ring?


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I probably hit more elk with a pickup than you have with a rifle.


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Yeah, some. Recovered two of the older bullets that separated jacket and core, though both were lying together under the hide on the far side. Haven't seen that with any of the flat-base Interlocks I've recovered, which have ranged from the 100-grain .25 to the 225-grain .338. Did have one 117-grain .25 boattail Interlock separate on the shoulder joint of a mule deer at 100 yards, muzzle velocity @2950.


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MD,you're not the only one who's sounding a little dated....My first deer was taken with an early Ruger 77 in 7x57 using a 154 grain Hornady round nose...end for ended the deer and weighed 126 grains when we found it in one of the steaks. Two years ago...and 40 years later... I used a 150 gr. out of an '06....didn't realize until later it was a pre-Interlock bullet purchased back in 1972. Hornadys worked then, and they work now. My go to bullet.


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Originally Posted by Mule Deer
Yeah, some. Recovered two of the older bullets that separated jacket and core, though both were lying together under the hide on the far side. Haven't seen that with any of the flat-base Interlocks I've recovered, which have ranged from the 100-grain .25 to the 225-grain .338. Did have one 117-grain .25 boattail Interlock separate on the shoulder joint of a mule deer at 100 yards, muzzle velocity @2950.


John:

What muzzle velocities are you getting from your 7x57 with the 154 grain spire point? I can see a lot of merit in Seafire's 2750 fps.

Thanks

RM


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Originally Posted by MissouriEd
270 Win=130 interlock
7x57=139 or 154 or 160 interlock

Yup....hard to do better than this!

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Craig Boddington's article in AR--He writes the Hornady Interlock was designed in 1039.


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Originally Posted by Bugger
Craig Boddington's article in AR--He writes the Hornady Interlock was designed in 1039.


It was because of Hornady the Normans defeated the English at Hastings just a few years later.


"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown
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1939

Offf da

Last edited by Bugger; 05/24/16.

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Originally Posted by Bugger
1939

Offf da


You might have been right the first time because, if I understand correctly, Ingwe just might have been there.


"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown
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Well, I certainly wasn't using any bullets then.

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I just got a couple of boxes of 154 grain spire points to play with and pulled out the new Hornady manual (9th Edition) for reference. On page 333, the introduction to the 7x57 data states, "We developed data in the strong, modern Winchester Model 70. This data should not be used in the older Mauser Model 93 or 95 and should be approached cautiously in the Model 98 Mausers." Yet, even with a larger case capacity, the velocities recorded for the suggested loads don't even come close to the 7-08 data. Also, when I sent Hornady a question about the data published in the early manual (I call them the "Seafire Loads"), tech support responded with, "The older manuals have a different burn rate than the newer manuals. I would stick to the newer manuals as the powders have changed."

So basically, what Hornady is saying is, Even in a modern rifle and in spite of its greater case capacity, the 7x57 can't keep up. What the heck is the use of listing the suggested loads as "modern" if they're still watered down for old 93/95 Mausers?

Personally, I still think a "+P" section in the manuals would be helpful.


"An archer sees how far he can be from a target and still hit it, a bowhunter sees how close he can get before he shoots." It is certainly easy to use that same line of thinking with firearms. -- Unknown
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Originally Posted by bsa1917hunter
Originally Posted by MtnBoomer
So the Interlock is sorta like a magic pill?


It's magic on critters. It turns their lights out pretty quick... wink. Anyone who's used them knows that. Try one, it might make a believer out of you..


Made a believer outta me.


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Originally Posted by Jim_Knight
I feel the Hornady 130 Interlock was a slower, more delayed killer on the small Texas Whitetail and antelope. I like how the SST does myself on them. The bigger whitetails up North, hogs and muleys should have enough body mass to open up that Interlock. I consider it a "hard" bullet as compared to say, Speer or Sierra boat tails. Just my take on it.


Ditto my experience. They do inspire confidence but I have quicker kills with Sierra's.


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