Absolute flattest shooter from 100-500 yards

[magna19]

.22-243 and 7mmRUM if I just had to pick a couple off the top of my quickly.

If I hear something about a 7mmRUM again, Well I might just have to get one.

 

[beastep]

6mm or 6.5mm or a heavy 308 bullet as fast as you can push them are hard to beat. 7mm as well. I personally like 6mm since it will run with the Creedmore guys and nobody gives it much thought.

 

[emapples]

How could the .270 be a barrel burner? It's only 150 to 200 fps faster than a 30-06? My .270 certainly hasn't burnt out the barrel after a couple thousand rounds.

2u0's will lose accuracy after a few thousand rounds, now it depends on how accurate you need to be but any necked down high velocity rounds don't last as long as a say a 308, I've read 6k to 8k rounds for a 308 and 2000 out of a 270, it wills till shoot just lose accuracy. Just like a 6.5 creedmoor won't last as long as 308....

 

[dennishoddy]

270's will lose accuracy after a few thousand rounds, now it depends on how accurate you need to be but any necked down high velocity rounds don't last as long as a say a 308, I've read 6k to 8k rounds for a 308 and 2000 out of a 270, it wills till shoot just lose accuracy. Just like a 6.5 creedmoor won't last as long as 308....

I'm not following this. A .308 firing a 150 grain round(the sweet spot of the .308) is at 3000 fps according to the winchester factory ammo ballistics table. http://www.gunnersden.com/index.htm.308winchester-ballistics.html
Using another table, the 30-06 using its sweet spot of the 165 grain bullet, is 2800 fps. http://www.gunnersden.com/index.htm.308winchester-ballistics.html
The .270 using its sweet spot of 130 grain is 3060fps per this link. http://www.gunnersden.com/index.htm.308winchester-ballistics.html

I'm having a hard time seeing how a .270 is a barrel burner when it falls right in with the other calibers in weight and velocity.
I will say that the .270 is not an inherently accurate round. Nobody shoots a .270 at matches, although I've dialed my Winchester Pre-64 super grade to shoot 1/2" groups at 100 yds with reloads. It's still not a match accuracy type of rifle.

 

[magna19]

I'm not following this. A .308 firing a 150 grain round(the sweet spot of the .308) is at 3000 fps according to the winchester factory ammo ballistics table. http://www.gunnersden.com/index.htm.308winchester-ballistics.html
Using another table, the 30-06 using its sweet spot of the 165 grain bullet, is 2800 fps. http://www.gunnersden.com/index.htm.308winchester-ballistics.html
The .270 using its sweet spot of 130 grain is 3060fps per this link. http://www.gunnersden.com/index.htm.308winchester-ballistics.html

I'm having a hard time seeing how a .270 is a barrel burner when it falls right in with the other calibers in weight and velocity.
I will say that the .270 is not an inherently accurate round. Nobody shoots a .270 at matches, although I've dialed my Winchester Pre-64 super grade to shoot 1/2" groups at 100 yds with reloads. It's still not a match accuracy type of rifle.

I believe with the three you mentioned above the bore diameter starts taking a toll. If you keep going to the 1/4 bore it gets worse.

 

[ronny]

Don't claim to be a long range expert, but back when I could still see long range, my flattest shooter was 6.5x55. I didn't reload, so don't have any thoughts on loads for this round, but off-the-rack ammo was pretty darn good, as in flat.

 

[rlongnt]

Doesn't have every cal in the thread but some good info. 7mm Rem Mag would beat many there as would others.

http://www.chuckhawks.com/myth_busting_calibers.htm

 

[Eagle Eye]

A buddy just got a 280 Ackley Improved. Its a tad flatter than the 280 Rem. Not a shoulder buster either at the range.

 

[Okie4570]

A buddy just got a 280 Ackley Improved. Its a tad flatter than the 280 Rem. Not a shoulder buster either at the range.

I enjoy shooting mine probably more than any other rifle I've got.

 

[Glocktogo]

Doesn't have every cal in the thread but some good info. 7mm Rem Mag would beat many there as would others.

http://www.chuckhawks.com/myth_busting_calibers.htm

View attachment 101890

Interesting that factoring RoR (return on recoil), the .243 Win is a champ that only loses 2.9" at 400 yards to the top dog, which has almost 5X the recoil!