270 or 280AI

[Brandon_SPC]

A .280AI is 7mm mag performance in a cartridge meant for a standard bolt face. IMO it is a very efficient cartridge for what it is but to me for most hunters it is just splitting hairs. If you don't reload pick the .270 if you reload well why not the .280AI? Have something a lot of other people do not have plus the AI look sexy lol

 

[Brandon_SPC]

I shot a 28N in the Christensen Ridgeline, recoil was really tame. I’m just a little worried about the barrel life on a 28n. Sounds like it’s 1/2-1/3 if a 280 class cartridge

If you have the money to burn a barrel out with a 28 Nosler you will have the money to replace the barrel. ha But if you are worried about barrel life and still want performance of a 28 Nosler look into a 7mm-300wim mag (7mm Practical).

 

[AK Troutbum]

The recoil is pretty close between the 2 isn't it AK?

Yeah, I would say so. If there is a difference it’s pretty negligible.



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[280ack]

I have been shooting the 280 AI for more than 30 years. I have never seen a reason to shoot or buy a 270 win or even a 270 wby. Many of my hunting buddies have had 270's and ended up either shooting 300 mags or 284 diameter rounds. The 270 will work, the SD's are higher with 7mms. The 160gr bullets in 280 AI have killed elk and the 140-150s have killed deer and antelope with no concerns. In a previous post the writer said if you have a 270 that shoot stay with it. I agree, the 130 gr bullet works on deer even large deer. I would go up to the heavy weight 270's for elk (old Barnes 170 gr round nose rounds) and moose but you loose velocity( 2400 fps =/-. My 160 partition in a 280 AI is a 3,055 fps round. If your starting out go with the 280 AI and you wont need for anything unless your dealing with Grizz or Brown Bears. My 2 cents

 

[16Bore]

A .280AI is 7mm mag performance in a cartridge meant for a standard bolt face. IMO it is a very efficient cartridge for what it is but to me for most hunters it is just splitting hairs. If you don't reload pick the .270 if you reload well why not the .280AI? Have something a lot of other people do not have plus the AI look sexy lol

AI is the boob job of cartridges. Looks better in a bathing suit and impresses the boys, but the same nipples attached to the same drama queen.....

 

[Brandon_SPC]

The 270 will work, the SD's are higher with 7mms.

Comparing the same weight bullet or close a .277 bullet will have a higher sectional density than a .284 caliber bullet. Like a 160 grain Nosler partition
.284 diameter SD = .283
.277 diameter SD = .298

.277 diameter 170 grain = roughly .317
.284 diameter 175 grain = roughly .310

 

[280ack]

You are certain of your opinions and feel that insults will help you prove your point.
The data you showed early on was far from apples to apples in comparison. The 145 gr Barnes is more like 3,225 fps from an AI That equates flatter and higher energy. The elk rounds start at bonded core 150's in the 7mm's and go to 175 grs. The 270 doesnt have many options in that weight class, energy class or velocity class.

 

[Brandon_SPC]

AI is the boob job of cartridges. Looks better in a bathing suit and impresses the boys, but the same nipples attached to the same drama queen.....

I like boob jobs haha

 

[16Bore]

You are certain of your opinions and feel that insults will help you prove your point.
The data you showed early on was far from apples to apples in comparison. The 145 gr Barnes is more like 3,225 fps from an AI That equates flatter and higher energy. The elk rounds start at bonded core 150's in the 7mm's and go to 175 grs. The 270 doesnt have many options in that weight class, energy class or velocity class.

Same bullet vs same bullet, for starters and if math insults you then I’m sorry. Seems Nosler can’t push a 150 faster than 2,900, and the fella in question stated 3,050 for his. If you’re sitting at 3,225 then good on you. Maybe let Barnes know as well.

 

[Ratbeetle]

Same bullet vs same bullet, for starters and if math insults you then I’m sorry. Seems Nosler can’t push a 150 faster than 2,900, and the fella in question stated 3,050 for his. If you’re sitting at 3,225 then good on you. Maybe let Barnes know as well.



View attachment 147428

I'd tell you that more often than not, book max really doesn't mean much. But you already know that and are just looking to show how smart you are.

Carry on.

 

[Brandon_SPC]

Same bullet vs same bullet, for starters and if math insults you then I’m sorry. Seems Nosler can’t push a 150 faster than 2,900, and the fella in question stated 3,050 for his. If you’re sitting at 3,225 then good on you. Maybe let Barnes know as well.



View attachment 147428

I would like to know the load for 3225 with a 145 grain Barnes. Probably also needs to let Hodgdon know because with a 140 they are only getting 3,068 fps and that's with Hybrid 100V with a Nosler BT which takes up far less case capacity than a Barnes. I could see getting into the 3100 but not 3225.

 

[16Bore]

I'd tell you that more often than not, book max really doesn't mean much. But you already know that and are just looking to show how smart you are.

Carry on.

I’d be curious to see what you’re getting out of yours.

 

[Joelweb]

My 280 AI is shooting 139 grain Hornady GMXs at 3125 out the muzzle. I sure like it.

 

[Ratbeetle]

I’d be curious to see what you’re getting out of yours.

Probably about the same as what you get out of yours. I don't need one to know that reloading manuals are guides only.

The guy who thinks 260 rem can't compare to 6.5cm is now claiming that there is no discernable difference between 270 win and 280ai. You're either wildly inconsistent or just like to stir shit.

 

[BjornF16]

Here is a closer comparison (150 ELD-X vs. 145 ELD-X). Advantage remains 280 AI, again to the tune of 150-200 ft-lbs.

Will elk be able to tell difference? Doubt it. But I would argue the extra energy would allow for more of an imprecise shot with 280AI.

0.5 MOA vs 1.0 MOA...straw man argument. The assumption should be equally accurate rifle, equally accurate shooter, and let the ballistics fall where they may.

Ackley didn't bother with "improving" the 270 Win because it's considered slightly over-bore already with 150 gr bullets. 150 gr seems to be the top end (at least factory ammo wise for 270 Win) whereas 280 AI commonly loaded at 180 gr.

As I said earlier, the availability of 270 Win is much higher compared to 280 AI; I chose 280.

(But it is kinda funny when one posts data supporting their perspective then gets torqued when the fallacy is pointed out...just sayin ;-)

 

[16Bore]

Probably about the same as what you get out of yours. I don't need one to know that reloading manuals are guides only.

The guy who thinks 260 rem can't compare to 6.5cm is now claiming that there is no discernable difference between 270 win and 280ai. You're either wildly inconsistent or just like to stir shit.

Right, because SAAMI says so? You can make a 260 do anything you want. Provided you get the mag, throating, and twist correct. Been quite a big fan of 260’s in the past but you’re wasting your effort of you pull one off the rack now....considering the alternative.

Remington never did it right and CM did out of the gate.

X bullet going Y velocity = Z result. Not too hard to figure out. You can’t make chicken salad out of chicken shit.

 

[16Bore]

There’s nothing false about the imaginary benefit of 150 ft lbs of “energy”. Feel free to provide the information about how a “miss” is thwarted because of it.

 

[BjornF16]

There’s nothing false about the imaginary benefit of 150 ft lbs of “energy”. Feel free to provide the information about how a “miss” is thwarted because of it.

I didn't say "miss"...I said "imprecise" shot. I'm sure you're intelligent enough to comprehend the difference.

If two cartridges' external flight ballistics are nearly identical, I would always choose the one with more energy for terminal ballistics.

Other factors would include ammo availability, reloading cost, etc.

You're happy with 270 Win...great! Go forth and hunt. Don't really understand the puerile attacks on those who chose 280 AI.

 

[wind gypsy]

My Ruger M77 in .308 kicks more than my CA Ridgeline in .28 Nosler.

Goll darn those nosler engineers are geniuses! Wonder how they got a cartridge to burn nearly twice as much powder and still have less recoil?

 

[mxgsfmdpx]

Goll darn those nosler engineers are geniuses! Wonder how they got a cartridge to burn nearly twice as much powder and still have less recoil?

Just using a real world example with two rigs that I own.

Obviously, out of two of the exact same set up rifles, the .28 Nosler will hit you a little harder.

Too many factors involved with recoil to say a certain caliber “kicks a lot more” than another.