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My godfather has been like a father to me for about 45 years. I lost my dad at a young age and my godfather stepped right in. Anyway, the rifle is a pre-war, pre-64 m70 in original condition sands the re-chamber. The gun belonged to his father in law who hunted all over the world with it. He killed elk, grizzly, deer, caribou, etc. Any insight to this cartridge would be appreciated. It appears from the research that its a 30-06 with about 150 more fps. Thanks in advance gentlemen! Perry | ||
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I built one back in the early 90's on a Rem 700 and a Shilen barrel. I worked up a load with a 180 gr Speer sp and IMR 4350 that clocked 2934 fps. The load I use now is with a 165 gr Barnes TSX & IMR 4350 , and is rolling along at 3000 fps. Both loads using CCI large rifle primerrs. Its extremely accurate with plain 30-06 ammo as well. I was able to make 3000 fps with 180 gr bullets, but I was pushing things. Primer pockets loosened up quickly. Great cartridge in my opinion. Hang on TITE !! | |||
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Like old 300 H&H factory stuff. Since the rechamber killed the value you could keep it or rebarrel. Maybe duplicate the old barrel contour and keep it as an 06? | |||
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I have an 06 Ackley Imp on an early custom Mauser. It has an interesting scope and it is accurate. I disagree as to anything lost-except to actual collectors. The caliber was very popular in the 1950s-early 1960s. I would not alter it as the rifle has value to you. Brass is instantly formed by using stock 30-06 rounds-I started re-loading with a neck size only die. Works-as you just have one AI rifle. Later a fellow hunter saw my post and sent me a set of RCBS dies. IMR or H-4350 is probably the best powder. I have a Handloader Magazine article on the 30-06 AI and his chronographed results mirror the 300 H&H. Keep that pre-64 M-70-especially since its a pre-war rifle. I have 5 of the early Model 70s-they are the Rifleman's Rifle. PM me for loading advice or other info. Lt Col RM Avatar | |||
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I have a few Ackley Improves in different calibers and one of the great thing about them, I feel is the very infrequent need to trim cases. (which I hate doing!) Cases last a lot longer due to less stretching. Hip | |||
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Go kill everything on the planet with that cartridge except where regulations prohibit it. Mike Legistine actu quod scripsi? Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue. What I have learned on AR, since 2001: 1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken. 2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps. 3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges. 4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down. 5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine. 6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle. 7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions. 8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA. 9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not. 10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact. 11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores. 12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence. 13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances. | |||
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just because it has an Ackley chamber cut in it doesn't mean you have to try and juice it up. regular everyday 0-6 loads work just fine. | |||
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As one AR member wisely said, the thing about non-standard chamberings is there are no standards. In my experience the straighter case walls contain pressure a bit better and will kind of hide it. I wouldnt count on 150 fs over standard velocity, but I wouldnt hesitate to push it just a little bit either. The nice thing about an AI chamber is the brass lasts longer, but the downside is you have to fireform it. Expect the best gains from heavier pills. AK-47 The only Communist Idea that Liberals don't like. | |||
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Get a copy of Ackley's Handbook For Shooters And Reloaders. https://www.barnesandnoble.com...er-ackley/1117652936 | |||
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remember that an AI from who knows how far back they did the rechamber may be any of a number of different variants of the round. If it comes with your godfather's FIL's reloading dies, then you can start using that, otherwise its probably best to shoot a regular 06 round through it and find out just which variant you are dealing with before you start modifying the loads. Worst case you will either have to rebarrel or buy some custom dies. Most of the gain in velocity in an AI is running it at a higher pressure than having that much more case capacity. Essentially they remove most of the body taper, shift the shoulder forward a tad, and steepen the angle of the shoulder, trying to keep the datum line the same so you can use factory 06 ammo in it in a pinch. I have been told that some are very generous in the increase in the shoulder and factory ammo no longer works in that particular rifle. Sounds like a unique gift... be safe in working up with it and enjoy it. | |||
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Thank you gents for the insight and information! Perry | |||
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At ".30-06 pressures" expect a gain of about 50 fps. Of course, ".30-06 pressures" are conservative in a modern bolt-action rifle. Just as most regular '06's can be boosted to around 2800 fps with judiciously increased pressure, look for about 2850 or, depending on how "fast" the barrel is, maybe 2900 fps. Any more velocity and you'll start to find primers falling out on subsequent reloadings. I owned a .30-06 AI a short time back. Sold it simply because I didn't need it. However, if it had had some sentimental value I would have happily kept and shot it. No problem to load for, and, assuming the rechambering was done properly, regular '06 ammunition shoots just fine with minimal loss of velocity. Reloading hint: Expand the necks of new '06 brass with an 8mm expander button, then run the cases just far enough into the FL die to allow the bolt to close on them with slight resistance. This will assure that your headspace is minimal and cases fireform without excessive stretch at the pressure ring near the head of the case. | |||
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Go shoot it, hunt with it, If you don't reload shoot 30-06 ammo in it and sell the cases to buy std 06 ammo. Its a win win situation..No big deal or selll the barrel and buy a pre 64 used barrel, lots of them out there. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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