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Joined: Jun 2010
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Originally Posted by super T
I wonder what the velocity difference would be with factory ammo? Some years ago I chronographed ( an Oehler) some 7 mm Remington Mag. 150gr factory stuff out of a Mod.700 that barely broke 2900fps.


280 factory ammo is pretty dismal through a chrony as well. At least the Remington stuff.

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One gun scribe maybe Layne Simpson said a cartridge had to develop 300 fps more than another to see any difference in the field. Not sure if 300 fps is enough but when I compare my 7RM and 280 AI to anemic factory 270 loads (+/- 2,900 fps) I do think there might be a visible difference.

Between the 280 AI and 7RM I would be dreaming if I thought I could tell a difference in the reaction on game. Maybe if you compared them to really slow factory 280 loads but even then I doubt it. But I have shot a lot more game with the 7RM than the others and the confidence factor is a good thing.


"When you disarm the people, you commence to offend them and show that you distrust them either through cowardice or lack of confidence, and both of these opinions generate hatred." Niccolo Machiavelli
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280-160g Sierra btsp, 58.5g of IMR 7828 fed 210= 2930 fps
White tails flop fast, near and far.

400 is a long shot for us
This load is worth building a rifle around

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I am not sure there is much different reactions of animals that are well hit.. It is easier to hit with a faster bullet at unknown distances.. Now with cheap range finders that is not so critical, but one does not always have time to use those when actually hunting.. I feel longer , heavier, and faster bullets give the hunt an edge, if things do go wrong.. Now days with most deer shot over "food plots" and the large numbers of deer in many areas, hunters for get this is not they way all hunting it done..


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To some, a "belt" or the word "magnum" is a game-changer. To each his own - there is a lot of winter left.


My home is the "sanctuary residence" for my firearms.
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Originally Posted by super T
I wonder what the velocity difference would be with factory ammo? Some years ago I chronographed ( an Oehler) some 7 mm Remington Mag. 150gr factory stuff out of a Mod.700 that barely broke 2900fps.


SIL and I both reload. That said, I do have a partial box of 160g Partitions from back in the 1980's before I got started reloading.

M7 7mm RM loads are 300fps faster than my .280 Rem loads using the same 140g bullets.


Coyote Hunter - NRA Patriot Life, NRA Whittington Center Life, GOA, DAD - and I VOTE!

No, I'm not a Ruger bigot - just an unabashed fan of their revolvers, M77's and #1's.

A good .30-06 is a 99% solution.
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Originally Posted by saddlesore
If you can' t kill an elk with a .280, you are not going to kill them with a 7 mag


Using that logic, a .270 Win will do what a .280 Rem will do.
And a .25-06 will do what a .270 Win will do.
And so on, until we're into the smallest .22 centerfires.
And then we're into the .17s.

And all are equal to the 7mm RM due to the transitive nature of the argument. (If A=B and B=C, then A=C)

The facts are my 7mm RM carries 1500fpe and 2000fps about 140yds further than my .280 Rem loads.

In real life, marginal differences often make large differences in outcomes. Ask any chemist or physicist or mathematician. They don't call it 'escape velocity' or 'critical mass' for no reason.


Coyote Hunter - NRA Patriot Life, NRA Whittington Center Life, GOA, DAD - and I VOTE!

No, I'm not a Ruger bigot - just an unabashed fan of their revolvers, M77's and #1's.

A good .30-06 is a 99% solution.
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