Home Forums Hunting & Shooting Custom Rifles & Wildcats 270-08 AI?????

His name is Hardway...no offence hardway

The round would do best IMO w light monos made for the 6.8
But yes you lose BC if long shots are in the plan.

I'm having a 270 Redding built now, on a Savage 99 platform. I don't think your AI is gonna get 3100fps out of a 22" pipe,...and keep safe pressures.

This is not my first custom build, but it is my first real wildcat (22BR is almost not a wildcat anymore). Redding says it's 26 weeks for a set of dies..and they created the cartridge! Plus the dies cost as much as the barrel blank! (...plus the cost of the one-off reamer, etc, etc)

All of the appeal, for me, is about having the only one on the block..., plus I think it's gonna be an effective whitetail cartridge (but I already have a 99 in 284win...so again, it's about having something unique)

All the arguments about it's place in a full stable of mid range short actions are valid (with 7-08, 260, 270 WSM all SAAMI'd). The cons of wildcats are that they're either expensive or need constant tweaks (feeding issues, forming brass).

And when there are so many standard choices, why bother?...You pays your money, you makes your choice. But will it be worth the cost of two or three standard rifles?

Wow! When I get to 3200 with 120 ballistic tips the primer pocket loosens at around five reloads. I think my barrel ended at 23" after setting it back for the AI. miles

The 270-08 is as legitimate as most other wildcats......most are from passion, not need. Why build a 6.5 SAUM when you have a 264 Win Mag......and already have the 270 WSM?

Amazing selection of 130g bullets designed for 270 Win speeds so why wouldn't they work great around 3,000 fps out of a 270-08? Just as good and maybe slightly better than the 140g bullet out of the 7mm-08 so it can't be a bad thing. And if you want to run heavy bullets, you have all the 150g class to choose from. Also some lightweight options including a lightweigt Barnes if that is your thang.

I can't remember when I got my 270-08 reamer; early 80's, I think. I recalled Ackley thought quite highly of it and it looked like a good way to shoot 270 bullets from a short action. I suppose I've built a half dozen or so and all those for whom I built them were happy. I made up one more complicated wildcat which featured a 45 degree shoulder pushed forward about .050" (I was young and didn't know any better). Christened the 270 Firefly, it performed much like a 270-08 but allowed the shooter to go to considerably more trouble forming brass.
I think the 270-08 is a decent cartridge though I freely admit there is nothing to recommend it over the 7mm-08 except a feeling of exclusivity. GD

Greydog, How did your earlier 308 based wildcats feed out of box magazines? I have a M-98 Mauser up at my G.S. right now, to be re-chambered to a new, over bored, short wildcat, based on the 300 RCM. My justification is to get my rifle to feed decently. The present Rem6mmBR is strictly a single shot, in a bolt action repeater.

I want to go after varmints and long range deer and antelope with this rifle. Dave Kiff, of PT&G, and I figured that putting in a severe case taper, and necking down to 6mm, would elongate it to 55mm from the 300 RCM parent's 53mm. But it's only neat, if it works. Working in my Shilen 1 in 14 twist barrel, will be stabilizing a flat based 100 gr. spitzer bullet. Until I get some fired brass, I don't even know what its capacity will be.

Like the old saying goes, Hind sight is 20-20. But you don't see the back end when you start one of these wildcat projects. You make your best calculations and just go with them. One of my earlier wildcats, the 44 Marsh was dogging along until Hornady came out wtih their 265gr. Gummie Tips. Now, its a really neat 94 Win. carbine, which can take down an Elk, out to 200 yards. But the next one will have a half Oct. barrel, 24 inches long. This thing weighs and balances like a "John Wayne" M-92 Winchester, but kicks like a Marlin Guide Gun, which also wasn't available when I created the 44 Marsh, with a 1 in 20 twist .428" barrel. I got tired of waiting for a quick twist 444 Marlin.

all you guys have good advice. I have been tinkering with wildcats for years and am fond of my 25-308. I was so impressed with the vol. that I always thought 277 would be great combo. as someone said "this wildcat doesn't make sense" well show me one that does. the factory offerings pretty much has it covered. wildcats are to fill a niche, mostly in our minds. I mean really 257 ak what does it do that 25-06 wont..
as for my opinion I love messing with wildcats and forming brass and all the tinkering involved. keeps me out of the bar.
I hope to see you do it so we can follow your progress.. this wildcat isn't about max vol rather efficiency. which will show respectable vol for its size.. if you are after more vol you will need more powder..

You're going to have a helluva time getting a 100 grain bullet to stabilize in a 14 twist.

You might think about tripping the barrel and coming up with at least a 9 twist.

There's one vote against it.

I shoot a 270 Titus, or 270/300 Savage and while I love the rifle, I don't see any real world advantage to the cartridge. I'd go 270 Redding like JeffG and feel like I was [bleep]' in tall corn!!! My Titus is cool, but it's basically a glorified coyote rifle, or a deer rifle. I shoot 110's or 115's in it due to the short neck. Another reason the Redding is better.

But, what a better round to [bleep] up

I've owned two 7-08ai's, one of which the wife is still shooting. MD is right on - probably around 3025-3050 fps with a 130 gr pill and a 22" barrel is a realistic velocity expectation in a 270-08ai. I'd say go 7-08ai, like BobinNH suggests. A 120 gr TTSX at 3180-3200 fps is safe load with a couple of different powders (this is in a 24" barrel). That's what the wife is shooting and it is all she will probably ever shoot, regardless of the game we're chasing.

Why not just simply AI a .260 and load 130 NAB's? You quote the 130 .277 bullet so my guess is you are looking to stay at the lighter end of the .277 scale?

Just my opinion, but there is plenty of flexibility with the Nosler and Scenar offerings in .264 cal.

No trick to push 130's at 3100 in a 308 either, just for conversation. One could still stamp the barrel 270-08AI if it helped.

I'd be more interested in your .300 Savage with 130TTSX...

Do you get 3k out of that rig?

Nipping its heels.

I'm planning on building a 270/08 with a 9 twist barrel in the near future so I can give the long range 150 Accubond a try.

The only thing I plan to do a little different is I'm going to deep chamber my 270/08 to accept 270 win brass for a significant increase.. I'm thinking its going to be pretty impressive for a 270/08!

Shod

Sounds like a great idea - oughta be able to break 2900 in that rig Wonder why no ones thought of that before?

I prefer the 270x57AI Mauser better. A 270/284 wouldn't be half bad though. Nothing the 6.5 couldn't replicate but still just as fun...

W

From Hodgon's web site Plan jane 7-08 good enough.
Bullet Weight (Gr.) Manufacturer Powder Bullet Diam. C.O.L. Grs. Vel. (ft/s) Pressure Grs. Vel. (ft/s) Pressure


130 GR. SIE HPBT Hodgdon H4350 .284" 2.800" 47.0 2871 43,000 CUP 50.0C 2998 47,400 CUP
130 GR. SIE HPBT Hodgdon H414 .284" 2.800" 44.0 2761 40,900 CUP 47.0 2925 50,000 CUP
130 GR. SIE HPBT IMR IMR 4350 .284" 2.800" 45.0 2730 41,200 CUP 47.0C 2846 46,300 CUP
130 GR. SIE HPBT Winchester 760 .284" 2.800" 44.0 2761 40,900 CUP 47.0 2925 50,000 CUP
130 GR. SIE HPBT IMR IMR 4007 SSC .284" 2.800" 43.0 2739 37,000 CUP 47.5C 3040 50,300 CUP
130 GR. SIE HPBT Hodgdon H380 .284" 2.800" 45.0 2804 41,900 CUP 47.0 2934 45,700 CUP
130 GR. SIE HPBT Hodgdon CFE 223 .284" 2.800" 41.9 2765 37,300 CUP 45.5 2957 47,800 CUP
130 GR. SIE HPBT Hodgdon Varget .284" 2.800" 40.0 2830 43,400 CUP 43.5 3004 50,100 CUP
130 GR. SIE HPBT IMR IMR 4320 .284" 2.800" 40.0 2709 43,200 CUP 42.5 2863 50,100 CUP
130 GR. SIE HPBT IMR IMR 4064 .284" 2.800" 39.0 2711 39,600 CUP 41.7 2890 49,900 CUP
130 GR. SIE HPBT Hodgdon BL-C(2) .284" 2.800" 41.5 2857 44,000 CUP 44.2 2989 49,800 CUP
130 GR. SIE HPBT IMR IMR 4895 .284" 2.800" 40.0 2759 43,300 CUP 42.4 2801 50,000 CUP
130 GR. SIE HPBT Hodgdon H335 .284" 2.800" 37.0 2690 44,800 CUP 39.0 2809 49,500 CUP
130 GR. SIE HPBT Hodgdon H4895 .284" 2.800" 39.5 2824 43,500 CUP 42.0 2957 50,200 CUP
130 GR. SIE HPBT IMR IMR 8208 XBR .284" 2.800" 39.1 2755 42,600 CUP 41.6 2922 50,400 CUP
130 GR. SIE HPBT IMR IMR 3031 .284" 2.800" 37.0 2709 42,400 CUP 39.5 2860 50,000 CUP
130 GR. SIE HPBT Hodgdon Benchmark .284" 2.800" 37.0 2701 41,500 CUP 39.8 2861 50,200 CUP