30-06 Based Cartridges

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Ironically, all of my hunting rifles, except one, are based off of the .30-06. First is my Ruger M77 in .30-06, then a custom pre-`64 Model 70 in .35 Whelen, then another custom pre-`64 Model 70 in .30-06 Ackley Improved, and finally, an AR in .308.

My only bastard rifle is in .257 Roberts.

257 Roberts gets a free pass. If ever find one it's coming home with me.
 
.280AI

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Ive got an 06AI also, and like that one well enough. Im mildly interested in comparing it to the slightly shorter barreled 300wm.
 
For many many years, while I had great appreciation for the 30-06 itself, I thought the 270 Win was just a pet project boosted by Jack O'Connor and hyped beyond all reality. As a fan of the Swede, what need had I of the 270.

But then I did just want to push a 140 grs 6.5mm bullet rather faster than one should in a Swedish Mauser and I sort of got interested in the 6.5-06. And then, I did math. At 0.013" larger dimater, . 277 bullets,while less prolific, are not much larger diameter, and there are a LOT of rifles chambered in 270 Win.

So I came to the 270 Win. It's an awfully useful cartridge, as I would imagine is the 280 Rem.

Having had both over the years and shot/hunted with both, I came to the realization that the 280 required a 24” barrel to do what the 270 can do with a 22” barrel. Maybe a slight edge to the 280 for bullet selection, but the 270 is more than adequate. What more could a fella want? Many will say the 280 can shoot the 175s, but in reality one needs to just step up to the 7Mag instead of leaning hard on the ‘06 case. The 280 is at its best with 140-150gr pills - the 270 at 130-150gr. Hand loading? Both are easy, so that’s a draw. Same with accuracy. Either will suit any competent hunter. Pick whichever you like and be happy. I also considered the 6.5/264 time and time agin, but I just did the math and have been happy with the 270 ever since.
 
For over 45 years i have occasionally re-loaded the 9.3X62mm cartridge for use in several different rifles. Currently i own two rifles in that caliber, a Ruger #1 and a model 96 Mauser. Until a couple years ago i used European made cartridge cases exclusively. Then i purchased 50 Hornady 9.3X62mm cases. Loaded up ten test rounds using those Hornady cases in anticipation of elk hunting. To my surprise the bases of the fired Hornady cases were noticeably swelled after firing in the Mauser: Same with the Ruger. Never had this problem when using Norma and RWS cases.

The specified rim diameter of 9.3X62 cases is .470, body diameter is .476 and shoulder diameter is .451. Compare those numbers to .30-06 dimensions.
 
Do it. Then I can compare your results with my 300wsm :)
Will do. Im still not dead set on a load for the 06AI. RL-23 is what i shoot in my .280 and i want to try it in the 06, except it went non-existent and i only have enough powder for one more box of rounds.
My superformance loads are doing about 2950 with 178eldxs.

Are your results equal to the 7mm rem mag?
I hear nothing but good about the 280AI
Very close actually. My RL-23 loads clock 3000-3050 with 160 class bullets, and i can get to 3k with 2 or 3 other powders.
My 7mags have all shot Retumbo with velocity running 3000-3150 depending on the particular rifle/barrel.

I do note that changing cases with my 280ai, can jump pressure and velocity significantly. Federal cases with my rl-23 loads show a 100fps difference in velocity, and loosened primer pockets.


For top loads, the AIs burn about 60gr, to maybe 65gr of powder. The shorter belted mags use 70-75, and the 300WM will up to about 80.
My opinion is that most of the velocity increase on the AIs is coming from an increase in pressure, and a possible reduction in bolt thrust as the case grabs the chamber walls fairly securely, rather than the relatively minor increase in capacity.
 
I started with 30-06 based cartridges and I have stayed with them for several reasons. First, I like the availability of components. A second reason which is important to me is that I have big hands and the rifles are easy to load and unload in the dark wearing gloves. Short cartridges and short action rifles just do not work for me. I started with a 25-06 but with hunting experience I found that heavier bullets worked better and I progressed to a 270 Winchester, and then to a 30-06, and today my favorite deer cartridge is a 338-06. I still use all four calibers but I use a 30-06 every week and my choice for deer hunting would be my 338-06.
 
I am going through a 270 Win stage. With the right barrel, bedding, and bullets, a 270 Win is an extremely accurate cartridge.
IMHO, the .270 is probably the most under rated cartridge where accuracy is concerned.
My Tikka T3 Lite in .270 Win. (straight out of the box) is my most accurate rifle and is set up for High Power Metallic Silhouette. 2-3/4" 5-round groups at 500 meters (Ram) is the norm for that one.
 
For over 45 years i have occasionally re-loaded the 9.3X62mm cartridge for use in several different rifles. Currently i own two rifles in that caliber, a Ruger #1 and a model 96 Mauser. Until a couple years ago i used European made cartridge cases exclusively. Then i purchased 50 Hornady 9.3X62mm cases. Loaded up ten test rounds using those Hornady cases in anticipation of elk hunting. To my surprise the bases of the fired Hornady cases were noticeably swelled after firing in the Mauser: Same with the Ruger. Never had this problem when using Norma and RWS cases.

The specified rim diameter of 9.3X62 cases is .470, body diameter is .476 and shoulder diameter is .451. Compare those numbers to .30-06 dimensions.
Ive measured a decent number of 06rounds and generally found them to be .464-.468, the .270 and .280s ive checked have been .468-470
 
What's your favorite rifle cartridge that was developed from the 30-06? This is more for fun than anything else. Pics are welcome if ya got em!

My personal favorite is .300 Savage; specifically in the Savage 99 lever rifles. I typically load 150gr FMJ and SST projectiles from Hornady and Varget is a favorite powder for this combo. I have 1940s production rifles with period correct Weaver glass printing around 1-1.5 MOA. Gotta love hand me downs lol.
 
IMHO, the .270 is probably the most under rated cartridge where accuracy is concerned.

I bought my first 270 Winchester in 1978 and I still judge the accuracy of all other rifles as compared to that original 270 Winchester. All it ever needed to shoot little bitty groups was a pound of IMR 4831 and a quality 130 grain bullet.
 
Well I love the .30-06 and that is my primary hunting rifle. I have also enjoyed the .338-06.

My next rifle will probably be a 280AI, so I guess you could say I like the case.

I realize that it is not very modern and there are probably more efficient case designs, but it is simple, effective, and proven.
 
Well I love the .30-06 and that is my primary hunting rifle. I have also enjoyed the .338-06. My next rifle will probably be a 280AI, so I guess you could say I like the case. I realize that it is not very modern and there are probably more efficient case designs, but it is simple, effective, and proven.

I have a pre 64 Model 70 Winchester action, stock and scope that needs a new barrel. I have thought over and over about a 280 Ackley but my better judgement tells me to buy another 338-06. The best advice my dad ever gave me was that "if you don't know what to do, don't do anything." Time will tell?
 
I'm gong to vote 280ai. I have a long action Savage that is going to get a 280ai barrel, or I'll drop a cheap 308 barrel on it. 280 interests me a lot more, but 308 would be tons cheaper.....
 
About 15 years ago I bought a Ruger M77 in .280 Rem at Bass Pro Shops on clearance for $269.00. Walnut, blued sporter barrel. Back then I tried to buy those rifles in as many calibers as I could find affordably. Had over 20 at one point. Didn't know much about the .280 specifically, but for the price I shoulda bought 2. Grabbed a couple boxes of Hornady Custom ammo,scrubbed it, slapped a Burris Fullfield 2 on it, bore sighted and away I went. Once on paper, it shot 3 consecutive 5 shot groups of 3/4" or less at 100 yards. Only rifle I've ever owned that did that with factory ammo. Been a fan of .280 ever since.
 
@Chuck R. How does it shoot? I have pawed over the Nosler site, but never have bit....They sell 257 ammo, but no longer sell a rifle chambered for it :cuss:

Sub MOA for 5 shots, right at about 3/4s MOA for 3 shots consistently with 130 Nosler BTs and ABs over H4831, both loads are over 3150 FPS.

It actually has a light contoured 24" barrel and the whole rig with scope & sling is just over 8lbs. The stock (B&C) is a little more chunky in the wrist than I like, but not a show stopper. I bought it on sale a year ago for a little over $900 as apparently the M48s in .270 weren't selling well, too much recoil, too long of an action, and too old of a cartridge apparently. Friend of mine has 2 M48s; a .300WSM and a .270WSM and both of them shoot well also.
 
I'm partial to the .280 Rem, even though I don't own one at the moment.
Maybe it's because it was the first caliber that I purchased for myself at 19 years old. I also killed my first few deer with it.

In reality the .280 Remington is an excellent and very useful round, crippled by poor advertising and hampered by 7mm-08, which gives as good practical (in the hands of a hunter or most shooters) performance and allows a shorter action.
 
The 30-06 is so versatile that it's hard not to like it, unless you are @Llama Bob. A person could do just fine hunting in N. America if that was the only rifle that you owned.

My first really accurate rifle was a M700 25-06 and I have a soft spot for it. But it's a niche cartridge for long range medium game, a little too big for varmints in general and pushing it for elk sized game.
 
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