7mm Rem Mag vs. 270 Win.

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350 Mag

350 Mag

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Just a little comparison.

Nosler #5 as resource.

.270 Win 150 gr Nosler Partition(.465 B.C)

Muzzle Vel. 2905 f.p.s ------ 500 yards 1983 f.p.s

Muzzle Energy 2811 ft.lbs ------ 500 yards 1310 ft.lbs

42 inchs low@ 500 yards with 200 yard zero.




7mm Rem Mag 160gr Nosler Partition(.475 B.C)

Muzzle Vel 3058 f.p.s------ 500 yards 2159 f.p.s

Muzzle Energy 3323 ft.lbs------ 500 yards 1656 ft.lbs

36 inchs low @ 500 yards with 200 yard zero.


According to numbers the .270 is quite capable of dispatching Deer at 500 yards(IMPRESSIVE)....but the 7mm numbers are more impressive. Especially the +500 ft.lbs of energy at the muzzle.


Clear winner....7mm Rem Mag. Shoots flatter, faster and hits harder. Whether the animal can tell the difference is a different story. Dead is Dead..:wave:

More than a dime's worth of difference on paper. ;)

My apologies to Jack O'Connor....:D
 
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It's just numbers. I've had both, but now only have the 7mm. The .270 is more readily available in lighter rifles and burns quite a bit less powder. Jack O'Connor was very impressed with the 7mm, stating that it was very flat shooting and deadly. In those days it was also loaded much hotter than today.

I was getting +3200 fps with good accuracy using RL22 and 130gr XBT out of a 22" barrel (Remington Mountain Rifle). It shot plenty flat and hit hard enough.

You don't really need more than a .260 Rem, .270 Win, 7mm-08, 7x57, .280 Rem, 7mm RM for deer/moose. They are all pretty much the same at normal ranges. I think there are very few people who can ethically harvest game at 500 yards. They exist, but they are generally the ones that don't post about it here because they know that it would just encourage "hail mary" shots.

For zeroing you should try using a point blank range. Once you chronograph your accurate hunting load you adjust according to a chart. Then verify on range to see how close you come to the chart.

For example the PBR (+-3" max) range of your 7mm load would be 302 yards with a 256 yard zero. At 100 yards you would be +2.5".

A 130gr TTSX out of a .270 at 3200 fps would be 312 yards with a 265 yard zero. At 100 yards you would be 2.4" high.

That way you can hold on to the point wou want to hit anywhere from zero to 312 yards and the bullet will never be higher or lower than 3" from your aiming point. It is a convenient way to avoid hassles with hold-over at the most often encountered ranges.
 
So what? Is this your Friday afternoon trolling run?

There always something BIGGER, FASTER, FLATTER, HARDER HITTING, LOUDER, COOLER, NEWER, SHORTER, LONGER, & MORE EFFICIENT than what you happen to be shooting. The 270 works well with a shorter bbl, uses less powder, has less recoil, tends to be in lighter rifles, blah blah blah & BLAH! Who cares?

Wasn't it you that said that "hunting" meant calling game in closer. If that's the case, why quote the mythical advantage of the 7Mag over the 270 @ 500yds?

350 Mag said:
He was back in a swamp 1000 yards away. I called him into 60 yards. He raked a tree and then stared directly at me. I shot him right between the eyes.

If the animal is too far away...you get closer....or bring him closer.

That is hunting...(NOT SHOOTING)
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Some folks on here were trying to tell me there wasn't ANY difference between the 7mm Mag and .270 Win.

They KNOW who they are...

One went so far to suggest that the .270 was as good/or better choice for hunting Grizzly than 7mm Mag.....:runaway:
 
SuperCub said:
So what? Is this your Friday afternoon trolling run?

There always something BIGGER, FASTER, FLATTER, HARDER HITTING, LOUDER, COOLER, NEWER, SHORTER, LONGER, & MORE EFFICIENT than what you happen to be shooting. The 270 works well with a shorter bbl, uses less powder, has less recoil, tends to be in lighter rifles, blah blah blah & BLAH! Who cares?

Wasn't it you that said that "hunting" meant calling game in closer. If that's the case, why quote the mythical advantage of the 7Mag over the 270 @ 500yds?
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YES...thats TRUE.

Just pointing out some ballistics.:sniper:

I am still firm believer in closer is better.

Not trolling either.:slap:

Friendly discussion...thats it!(No NEED to be RUDE or IGNORANT)






.
 
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350 Mag said:
Some folks on here were trying to tell me there wasn't ANY difference between the 7mm Mag and .270 Win.

They KNOW who they are...

One went so far to suggest that the .270 was as good/or better choice for hunting Grizzly than 7mm Mag.....:runaway:
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Was that a real world or paper difference?
 
sheephunter said:
Was that a real world or paper difference?
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REAL world.

He said..."7mm has NO advantage over .270 when it comes to Grizzly"...."not a dimes worth of difference"..... was the exact phrase.

This is from an experienced guide.(he is speaking from experience but I would still choose the more powerful cartridge...as long as it doesn't affect accuracy)

I would say +500 ft. lbs of energy is ALOT of difference when it comes to a predator?
 
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Well you are correct that it's 15% more energy in the charts you posted but would that make any difference with a well-placed bullet......I'd have to say no as well. Know personally of a few grizz taken with a .270 and they seemed plenty dead!

Personally I'd pick a .300+ if it was me....oh ya, it is me but I wouldn't feel undergunned with the .270 or 7mm if a good shot presented itself either.
 
350 Mag said:
REAL world.

He said..."7mm has NO advantage over .270 when it comes to Grizzly"...."not a dimes worth of difference"..... was the exact phrase.

This is from an experienced guide.(he is speaking from experience but I would still choose the more powerful cartridge...as long as it doesn't affect accuracy)

I would say +500 ft. lbs of energy is ALOT of difference when it comes to a predator?
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I'd give that a big "maybe"

Neither one of them is a perfect grizzly cartridge, but both have been used successfully.

I wouldn't shoot a grizzly at 500 yards, though.

What are your experiences using these cartridges to hunt grizzlies?
 
350 Mag said:
Friendly discussion...thats it!(No NEED to be RUDE or IGNORANT)
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Big difference between rude and ignorant.

In my case, maybe it was rude to refer to you as a troll, but you may be somewhat ignorant to suggest the paper superiority between the 7mag and the 270. ;)


.
 
Gatehouse said:
I'd give that a big "maybe"

Neither one of them is a perfect grizzly cartridge, but both have been used successfully.

I wouldn't shoot a grizzly at 500 yards, though. agreed
What are your experiences using these cartridges to hunt grizzlies?
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Not any Grizzly in Sask. and cannot justify a $10,000 guided hunt.:eek:

If I were to go for a guided hunt I would prefer Archery.:runaway:

This is just a simple discussion.

I am puzzled as to why ANYONE would choose a .270 over 7mm Rem Mag for larger game...as long as you can still put the bullet where it counts I will take the more powerful cartridge?

That is why I am putting those numbers out there...to PROVE there is a difference on paper. Call it measure-bating or what not...but there is a difference.(+500 ft lbs is a BIG difference)
 
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Gatehouse said:
So, if you have no experience in this,...how do you know this to be true:
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What claim did I make...aside from the fact that the 7mm Mag has +500 ft. lbs more energy at the muzzle than .270?...it does?



I guess it would make absolutely NO difference what so ever.

They should have NEVER invented the 7mm Rem Mag. It offers NOTHING over a .270!:confused:

Pretty much a useless cartridge considering .270 will do EVERYTHING a 7mm Mag will!

Might as well say everything above 30-06 or .35 Whelen is not neccesary either that includes all the WSMs, NEW Ruger compact Mags, 375 Ruger, RUM's or any of the other cartridges introduced in the last 10 years are totally overkill and not neccesary!:D
 
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