?? on 25-06 Ackley

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I do not disagree with Jack O'Conner unless he said his 25/06 cases did not shorten when fired in an improved chamber.

“The thickness of the metal in the primer is just as weak in the improved case as it was in the original standard case. In my years of reloading I have experienced 2 blown primers and the first time sent me to have metal picked out of my eye. Now I wouldn't think of firing a rifle at the range without eye protection”

All we need to do is determine when the primer was not supported, my primers are supported by the bolt face and primer pocket, AND the firing pin spring, fire formers fire first then try to determine the amount of case travel, again, I determine the length of the chamber first, form first, then fire. Then there is the difference between designs, I understand the design of my receivers.

I can only assume Jack O’Conner said it is a waste of time to go from 30/06 to 300 Win Mag if the intent is to shoot 150 grain bullets, I would think the 300 Win Mag would drive a 200 grain bullet as fast as the 30/06 drives a 150 grain bullet, and I would think he said if you want to shoot faster and flatter, get a 270 Winchester.

Old Man Dog, that is a better plan than firing to form first, then shoot 4 times and neck size 4 times and start over by full length sizing. By the time by cases have been fired 5 times they are tougher to size than my press has ability to size.

F. Guffey
 
We have left the topic of my original post, which would have been very boring. I have thoroughly read and heeded some of the advise which has been posted since. Some very interesting remarks have been made.

I have been a home builder as a profession for 28 years, but my wife thinks that shooting and reloading have become my other job over the years due to my time spent on my range and in my reloading room. I have a very good set up where as my bench is set up on my back porch and I have a 100 yd range to shoot, all carefully done with safety in mind. She particularly loves the looks of the board sticking out past my porch that my chronograph gets mounted to. It has the potential for giving one a headache when mowing the lawn.

My self employment back in those days allowed me to have a bit extra cash to start buying guns and the gun shop owner became my mentor when I decided to start reloading. Little did he know that he would be creating a monster. shortly after, I applied for and got an FFL license to be able to buy rifles and reloading components and tools at wholesale prices. I still have the license and actually do quite a lot of business to this day even though it is just nights and weekends.

My reloading knowledge after getting started has been self taught through experience and a ton of reading. Even though I am a relatively new member in THR, I have been reading posts here and in other forums for a long , long time. Much info has been gained form reading various magazines, websites, and anywhere it was available, as well as from fellow reloaders.

My dealer status has allowed me some good opportunites to save some $ over the years. I have become a direct Redding dealer as my personal needs met the criteria to do so. I should have been smart enough to do the same with Dillon.

Sorry to have bored you with the story of my life. I don't know where that came from.

During the process of learning reloading, safety has been on the top of my list. I have received, as well as I'm sure you guys have, many emails showing pics of blown up rifles and personal injuries affiliated whith them. I was never blessed with the prettiest face in the world, but have survived with it and always figured that there was no since in making it look uglier. I have only had one incident that scared me. I loaded up some 30-06 cases a good many years ago in the dead of winter which were very accurate and fast. The first one I shot on a hot day in July split the case. It didn't toatally separate, and no damage was done, but it was a learning experience which I will never forget.

The deviations of reloading data out there, even with the powder company manuals, dictates that care be taken while working up loads, not to mention the internet data. The data available for the 25-06 Ackley is particularly limited. I have many reloading manuals and only the Sierra lists this caliber. There are some posts in forums, some data on the Reloaders Nest site, and a lot of untrustworthy, irresponsible info posted here and there all over the internet. I have received some info from 41Mag, a member of THR, which has been tested and I am using as a guideline, but still I take care in working up my loads due to the fact that works good in someone elses rifle may not be safe nor work in mine. What I feel is the biggest problem with loading for this caliber is the fact that there is no definative max load. The Sierra manual is a bit outdated and lacks extensiveness, although I think it is the current manual. Rule of thumb says 5-6% over the parent cartridge. My rule of thumb is use caution every step of the way. If I get to the point where I am satisfied, I will stop there, and hopefully will not have to stop sooner. I always have felt that lawyers and liability issues, as well as old rifles define the max loads listed in manuals. Most of the time I will abide by them, but there are instances where I have went slightly over max loads. It is nice to know what that max load is though.
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I have done a sampling of different powder/ bullet combinations for this rifle. Some promising groups have been shot, but I think that I may have wasted some time by doing this. I traditionally will select a bullet that I would like to use and try different powders and seating depths to attain accuracy first and foremost and than get the desied accuracy. When I get close I will try different primers. If it won't shoot good, I will move on to anther bullet. This is the avenue of pursuit I am going to start today. I have always used the 100 gr Nosler Ballistic tips in my std 25-06s which were very accurate and fairly high velocity, not to mention that they were devastating on deer as well as varmints. I like them due to the fact that they have very good expansion and I worry less about the ricochet effect. My goal is to use that bullet or a similar one in 115 or 120 gr at the same velocity. Accuracy is the most important factor that I will consider.

Shooter 5907, as you have mentioned all along, overbore is a slight problem, but I have tried a couple of slow burning powders, H-1000 and IMR 7828, just to mention a couple, which do a good job with case capacity. In all the loads I have messed with so far, there is absolutely no sign of pressure. One thing that does concern me a bit is that I am a firm believer that on some occasions, excessive pressure can be acheived without showing any of the normal signs.

I have had a few very disappointing loads during this work up. Reloader 22 is supposed to be Gods gift for this caliber. I didn't get any where near the advertised velocities with it along with a few others.

The rifle itself shoots very well in general. Very few loads, I have tried shoot inaccurately. The craftsmenship that went into making this rifle deserves the time and effort involved to find the perfect load. My ultimate goal is to find the load which will shoot consistantly 5/8" or under. It seems like I may be asking for a bit too much, but I will do my best to get there. I do believe the potential is there. I guess time will tell. I am having a 6mm BR made (not for benchrest shooting). I should have that within a month. My obsession for accuracy scares me somtimes.

I'll keep plugging away and keep you advised as to my progress. There is a multitude of options available that are yet to be tried.

Hey shooter5907, I am not a competition target shooter either, although I might consider doing it if my eye sight was a bit better. We can all kill a deer with our worst shooting rifles, but I believe the one thing that we all have in common is the desire for those one hole groups. The work involved getting there is a labor of love. When a consistantly accurate load is found, the personal satisfaction is very rewarding. We may not share the same thoughts on this particular cartridge, but it sounds to me that our efforts and goals are the same.


Old Dog Man. I agree to take it down in steps, but I don't feel my options are there for this situation. going from .284 to .277 and then down from there doesn't seem like it is worth the effort due to the .007 gain. I don't have a 6.5-06 die and if i did. it would be going from .264 to .257 again, which is also a small gain. I will have to experiment a bit. I totally agree with your thoughts. I just won't know until I try it. My experimentation so far, dictates that the shorter case may not be as detrimental to accuracy as I originally thought. I will consider going another route for my next batch of brass when time comes to do some fire forming. If all those steps in sizing down are deemed necessary to do, it sounds like some annealing may be required as you mentioned. I have never done any sizing from one caliber to another before. That will be another good learning experience. It sounds to me like fguffey will be a guy to ask questions to for that process.

Again guys, thanks for your thoughts and comments. Sorry for the long post.
 
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quartermaster, great writeup, very interesting. We indeed share a desire for accurate rifles and I still own two 25-06's. My original 25-06 Remington is a fine FN Mauser Supreme custom rifle made by Paul Jaeger in Jenkintown, PA. It has a 24 inch Douglas premium air guaged barrel. The rifle that I carry the most is a pre 64 model 70 Winchester with a Douglas 24 inch duplicate featherweight barrel. It was assembled by Champlin Firearms in Enid, OK. A great rifle. I like a 25-06 for spring and summer shooting and as a scouting rifle. I shoot only 120 grain bullets because we have large body deer here in Oklahoma.

As to the 25-06 Ackley Improved. I owned the rifle for several years and finally gave it to a friend in Billings, MT. He told me that if he died before I do that his will provides that I will get the rifle back. It was also built on an FN Mauser Supreme action with a 27 in #4 Douglas premium air guaged barrel. I never did get the time to compare the trajectory to one of the standard rifles. When I was loading for the rifle the best powder was H 4831 and IMR 4831 and the only one I use in my rifles today is 49 grains of IMR 4831 with a 120 grain bullet. The rifle I had would handle 53 grains of H-4831 but showed very high pressure with 53 grains of IMR 4831.

You are in a very special position owning both the standard and the improved versions. If I were you I would use the same bullet and sight both of them to hit dead on at 200 yards. Then I would shoot at 300, 400 and 500 yards and compare the trajectiory and accuracy at long range. The results could get very interesting. BW
 
shooter 5907, I agree with you that the IMR 4831 is the go to powder for my 2 25-06s also. I have tried the Hodgdon version, but the IMR definately works best for me. I always try the Hodgdon extremes first when working up loads, due to their temperature insensativity. I have had very good luck with Varget in quite a few calibers, in fact I have an 8# container of both that and IMR 4831.

I have yet to try 4831 in the AI, but it will be my next powder to try along with Ramshot Magnum. So far my best success has been with 7828.

I did some shooting today. I am getting there.
 
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quartermaster, your comment about creating a monster gave me a chuckle. I worked for a major oil company for 30 years and retired in 1999. If I can count right coming this spring that will be 13 years. I love camping, shooting, hunting, tradiditional archery and fishing but in my extra time I do some taxidermy work. My wife really brags (gripes) about all of my deer heads hanging around our house, in the garage, in the shop, at her mothers house, at her sisters house, and at other relatives houses. One thing the hobby does is keep me young and fit because it keeps me in touch with all the young guys who want taxidermy work or tips on hunting rifles.

I think that new 25-06 Ackley Improved will lower your blood pressure and raise your adrenalin and keep you from thinging about money & politics. BW
 
I figured something out today that I'm not sure I believe or not, but I did it several times with the same result, so there must be something to it.

I took the time to break in the barrel as recommended by Shilen when I started fire forming for it. I guess my break in period took 35 plus shots, 500 patches and 2 gallons of Butches Bore Shine, (LOL)

In the days that I shot, the temperature was very warm. Through the fire forming process I never took more than 3 consecutive shots not allowing the barrel to get hot and I cleaned and still clean the barrel every 20 or so shots. Today I fire formed some more brass. It was a little cooler.

I measured each case for length after shooting because I was going to make my decision whether or not to continue using the 25-06 brass or go the route of doing a ton of work to make the 280 brass fit for fire forming.

I noticed my first shot yielded the longest brass and shooting 3 shots before letting the barrel cool down, the 3rd shot was the shortest. Upon further checking my brass shrank .006-.008 or more in some cases every shot. I made this discovery early in the day so I stopped the 3 shot business, and made 1 shot every 5 plus minutes or so. The brass became more consistant and stayed on the long side.

I still have a hard time believing it. My theory is that as the chamber heated up, it expanded leaving more room for the brass to expand, therefore stealing more brass from the neck. Do you think that is possible?

By the way, the rifle shoots great. I thought I had some good shooting rifles, but this one tops them all. It shoots very consistant also. It's just awesome. Shooter 5907, I can't find a slow enough powder to fill up the case, but get close with a couple. You were right about that. I guess in the back of my mind, I also knew that would be the case. I am getting a lot more out of it than it's parent cartridge, which I was hoping.

It seems the short cases really don't make a difference. I do trim them all the same length though, so hats off to NCsmitty also. My dilemma now is that usually when I am working up a load for a rifle, it takes me a while until I find what I think may be a potentially accurate load and tweak it from there. This rifle seems to shoot almost everything well. I have 4 or 5 different loads to tweak and not sure which one to work on first. I's a good problem to have.

Fguffey, I can see myself getting into some more difficult case forming problems in the future, if I do what I'm thinking about doing at this point. I hope you won't mind if I seek some advise from you in the form of a PM.

Thanks guys for your help and input.
 
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