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I have had my son shooting all summer with 22 Grains of SR 4759 in his Encore chambered in .270. The bullet he has been using is a HDY Interlock 130 grain. It just dawned on me that he may be a little under gunned. Shots will be inside of 100 yards. I called Hornady but they told me the minimum for that bullet is 2800fps for reliable expansion which I don't buy so that ended that conversation. I am thinking with this load he is doing about 1800 FPS.

Now season starts saturday and I will go back to the drawing board if need be, but just curious what thoughts are.

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That bullet started at 2800 fps has 1800 fps at 475 yards according to my ballistic program and 1600 or so at 600 yards. If started at an assumed 1800 fps it has just over 1600 fps at 100 yards so it would be like firing a relatively light loaded .270 at 600 yards.


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Agree with respect to velocity. But the bullet starting at 2800 with be spinning at a much higher RPM. There's been a lot of discussion lately regard the effect of RPM on a bullets terminal performance.

But deer ain't hard to kill. I'm guessing it would work fine as long as the bullet hits the right spot.

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I started my son with a 270 and 100 grainers loaded 'soft'. As he became accustomed to those and was shooting well, I switched to 140s, again loaded soft. When it came time to hunt, I gave him mid-to-full loaded 140 A-Frames and he had no trouble bagging his first moose. He had just turned 10.

I would bet that you could load those same 130s up another 400-600 fps and he won't even notice the difference with 'hair' in the scope.


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The minimum impact speed for reliable opening varies with the bullet construction. Partitions open reliably if they hit the target going 1800 FPS. So do Barnes, and, IIRC, Hornady bullets. Sierra and Speer cup and core bullets require about 2100 FPS minimum impact speed.

You might do best with a bullet designed for use in pistols if you can find one or with ballistic tips.

Last edited by denton; 11/11/14.

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For the 130 gr Interlock, the Hornady manuals list 2800-3400 as optimum velocity. You'd probably be o.k. if you bumped up your speeds to 2500-2600.

Hodgdon lists youth loads on their website using H4895:

www.imrpowder.com/PDF/Youth%20Loads.pdf

While they don't list 130 gr. bullets specifically, they do tell you how to use H4895 for reduced loads using the 60% Rule by reducing loads as low as 60% of max to achieve roughly 60% of max velocity. You could use a calculator to extrapolate and find the right load percentage to give a good balance between velocity and recoil.

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You will be fine. My son shot a deer with a 85gr TSX at 100 yards. Starting velocity was 1900fps.

My wife and nephew's have use the 140gr Hornady BTSP on close to a dozen deer with no problems. Ranges from 60 to 150 yards. That bullet clocked 2 350 fps.


Last edited by CRS; 11/11/14.

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I am quite sure that I could bump up to full house loads without an issue, the only problem is that there will be some major impact differences and re-zero would be a must. Not normally a problem but for some reason him and I shoot P.O.A. about 4-5" different with this load meaning that I would want him to shoot the load too. Now that it gets dark an hour after school gets out that is pushing it. I am really kicking myself for not thinking of this but he is REALLY accurate with the current load and I want to be comfortable with his accuracy and would want him to shoot the new load.

Anyone know how the energy would compare with the 100 grain .243 sierra my daughter shot her doe at 100 yards with being pushed by 27 grains of IMR 4198?

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The 130 hornady interlock is not a good bullet choice in the 270 for a 1800 fps load. Yes your result may vary from mediocre to piss poor.

The bullet is designed for higher impact velocities.

Shod

Last edited by Shodd; 11/11/14.

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Another option: have you considered a reduced recoil factory load like Remington's Managed Recoil ammo. They offer a 270 load with a 115gr bullet at 2700fps. I have a friend who's daughter uses it....very effective on deer out to 200 yds or so, and very little recoil

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Shodd,
How many deer have successfully taken/witnessed/mentored using reduced loads with ANY bullet? Let alone Hornady's?

The load will cleanly take any deer at 100 yards. The 130gr will work just fine.

I still have 50 plus reduced loads on the shelf with said bullet. I have BTDT. cool

Last edited by CRS; 11/11/14.

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Originally Posted by CRS
Shodd,
How many deer have successfully taken/witnessed/mentored using reduced loads with ANY bullet? Let alone Hornady's?

The load will cleanly take any deer at 100 yards. The 130gr will work just fine.

I still have 50 plus reduced loads on the shelf with said bullet. I have BTDT. cool


I'll bet your reduced loads are not leaving the muzzle at 1800 fps.

I'll give you it will work however as I stated at 1600 fps impact velocity the results may vary from good to piss poor.

Shod

Last edited by Shodd; 11/11/14.

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Just run to the store, pick up some 130 Ballistic Tips, throw them on the same reduced load, and you'll be there with great performance at the low velocity.

If you cannot find BTs, put a Partition on there and you'll also be okay.

I would not recommend that Hornady IL at that low of velocity. It is far outside its intended window and will give less than stellar performance.

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I have not chrono'd all of my reduced loads. But was very surprised when my 85gr TSX load was only 1900fps. Worked perfectly BTW.

The 130gr Hornady is not a hard bullet. I have pulled enough pieces of said bullet out enough venison to feel pretty confident about that.


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Originally Posted by DakotaDeer
Just run to the store, pick up some 130 Ballistic Tips, throw them on the same reduced load, and you'll be there with great performance at the low velocity.

If you cannot find BTs, put a Partition on there and you'll also be okay.

I would not recommend that Hornady IL at that low of velocity. It is far outside its intended window and will give less than stellar performance.


This.


You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.

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You would be better off with SST's, they are softer yet.

I know it is outside of the intended performance window, but if your son puts it in the right spot you will have one very dead deer.

I would much rather take a kid hunting that has shot a lot with reduced loads, and is using that load. Versus one who has shot very little with full power loads.


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So, anyone have a ballpark of where impact will be if I put one of my Speer 130's loaded over 57.5 grains H4831 in there. I am guessing that load is doing about 2800?

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Anytime you change powders, POI is anyone's guess



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I get that for sure, I was just thinking that someone more well versed in ballistics programs and how to read the little things like height above sight line and impact could help get me close.

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Originally Posted by 78CJ
I get that for sure, I was just thinking that someone more well versed in ballistics programs and how to read the little things like height above sight line and impact could help get me close.


The problem with a complete load change is the change in POI may entail more than a vertical trajectory difference.

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