Author Topic: 7mm interbond  (Read 619 times)

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Offline Tad Houston

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7mm interbond
« on: July 30, 2004, 09:04:55 AM »
I was thinking about trying the 139 gr. Hornady interbond in the 7-30 Waters super 14. Do you guys think that bullet is too heavy for that set up? Also would i get enough expansion? Hunting medium deer and hogs- Thanks- Tad :D

Offline K2

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Re: 7mm inner bond
« Reply #1 on: July 30, 2004, 09:08:25 AM »
Call Hornady and ask them what velocity range the bullet was designed for then base your use on that.  On deer it doesn't really matter as they fall fairly easily, on hogs it might.  
Quote from: Tad Houston
I was thinking about trying the 139 gr. Hornady inner bond in the 7-30 Waters super 14. Do you guys think that bullet is too heavy for that set up? Also would i get enough expansion? Hunting medium deer and hogs- Thanks- Tad :D

Offline Tad Houston

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7mm interbond
« Reply #2 on: July 30, 2004, 09:39:30 AM »
Hornady said this bullet will start expanding at about 2000 fps. I havnt loaded for the Waters yet, so i dont know about velocity in that bullet weight. Maybe one of you guys could give me an idea. Thanks- Tad :D

Offline haroldclark

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akihmsa
« Reply #3 on: July 30, 2004, 09:48:52 AM »
Hey, up in Forestville.  I just passed through Forestville twice last weekend on my way to Guerneville.

Bullet weight and staying power is a subject that I have studied heavily for knocking over steel Ram Silhouettes at 500 meters with a 7-30 Waters, 7mm BR and 7mm TCU in Contender 14" and Encore 15".

I have noted that most hunters declare they use 120 and really stepping up in weight to 139 or 140 grains.

The Hornady 162 gr BTSP is an interlock type bullet and it stays together better than the hollow points or the 162-grain Amax.  I shoot a bunch of Amax bullets and I currently have a supply of over 1600 of each BTSPs and Amax.

I have a theory on bullet weight that differs from some.  If I were going for a hog with a 7-30 Waters, I would go with the 162 gr BTSP Hornady for the retained energy on impact and penetration.  Out of a 14" Contender the 100yd velocity will be 1854 fps with retained energy of 1236 foot pounds and a retained momentum factor of 1.33 according to Sierra Software.

At 200 yards, the 162 grainer only drops to 1,058 foot-pounds of energy and 1.23 momentum.  With a 200 yard zero, the bullet will be 4.32 inches high.  That is minute of Hog out to 200 meters.

You will have to get up to 2200 fps with the 139 grainer to match the energy and drop of the 162 grain.  Momentum of the 162 grainer will give the best penetration and hang time on the target (Hog).

This should bring some of the light bullet aficionados up.

Harold Clark

Online Graybeard

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7mm interbond
« Reply #4 on: July 30, 2004, 12:54:50 PM »
You will be lucky to get much over 2100 fps with that bullet at safe pressures in a Contender, 2200 absolute safe max. So inside of 100 yards it MIGHT work. But why? Use the Sierra 130 SST. It is the best bullet going for the 7-30 and 7TCU.

GB


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Offline Tad Houston

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7mm interbond
« Reply #5 on: July 30, 2004, 02:22:17 PM »
Greybeard, i dont see those bullets in midsouth or midway- where do i get them? What does SST stand for? Thanks for the tip- Tad :D

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« Reply #6 on: July 30, 2004, 05:25:20 PM »
Oophs, typo error. Some times my fat fingers don't do what I tell them to on the keyboard. Make that SSP. Stands for Single Shot Pistol.

They are on Page 114 of the latest 2004 Fall Master Catalog in the upper right hand area under the heading of Single Shot Pistol. The catalog # is 007-7250. If you look for them elsewhere that last four digit # is the Sierra number for it. Price at Midsouth is $12.95 per 100.

GB


Bill aka the Graybeard
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Offline Tad Houston

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« Reply #7 on: July 31, 2004, 06:19:44 AM »
Found them- Thanks. I will order some today. Do you have any favorite loads i can work up to that you would share? Im also ordering the one caliber load book for the contender. I would like to get one of the Thompson Center load books that are out of print, but i dont know what to look for. Thanks again- Tad :D

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7mm interbond
« Reply #8 on: July 31, 2004, 10:04:19 AM »
I have a page on here set up to list my favorite 7-30 loads. I think you'll find it at:

http://www.graybeardoutdoors.com/730.htm

If that don't work let me know and I'll find it and give you the correct link but I'm pretty sure that's it without actually going to it to double check.

GB


Bill aka the Graybeard
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Offline inzalu

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7-30 Waters Load
« Reply #9 on: July 31, 2004, 03:02:59 PM »
I sure can vouch for the load that GB recommends. 130gr Sierra single shot pistol bullets over W748.  This load has already killed two large New York whitetails.  Both one shot kills.  Excellent penetration.  The load shoots 1" groups at 100yds all day long.  This is out of a contender with a 13" VVCG barrel.  The latest group was under 1/2".  Some people at the range could not believe the pistol was doing this.  Also, I have loaded the 120 Nosler BT with the W748 for a friend. Again two one shot kills on New York Bucks. Dropped in their tracks. Same barrel used VVCG 13" only in SS.  I stopped looking at loads after this one (130gr Sierra SSP).  I just cannot see it getting any better.  Good Luck and Happy Shooting.

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« Reply #10 on: July 31, 2004, 06:12:10 PM »
I've used my load listed on that page using the Sierra 130 SSP on white tail, exotics, hogs and various varmints. Works to perfection. You put it in the right place and you have a drag to make.

GB


Bill aka the Graybeard
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I am not a lawyer and do not give legal advice.

Jesus is the way, the truth, and the life anyone who believes in Him will have everlasting life!

Offline JC

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7mm interbond
« Reply #11 on: October 22, 2004, 04:54:37 AM »
has any one heard that they might not be continuing the 130ssp bullet?  I shot it out of the 7-30 and like GB got great results. I had a bunch left over so when the 7/08 came to the christmas tree I was a happy hubby