In order to participate in the GunBroker Member forums, you must be logged in with your GunBroker.com account. Click the sign-in button at the top right of the forums page to get connected.
Options
I need a good resource for A.I. reloading data...
n/a
Member Posts: 168,427 ✭
Does anyone know of any good reloading resources for A.I. chamberings? My .300 Win Mag A.I. is due back from the gunsmith in the next week or two and I'm itching to start looking at some loads for it.[:p]
Eric
allamericanarmsco@frontiernet.net
All American Arms Company
www.galleryofguns.com
VIP Code: AAAC
Veteran Owned and Operated
Eric
allamericanarmsco@frontiernet.net
All American Arms Company
www.galleryofguns.com
VIP Code: AAAC
Veteran Owned and Operated
Comments
The P.O. Ackley books will give you a lot of information regarding the Improved cartridges and loading information. Be careful with the load info as Ackley was known to run a bit hot. Brownells and Midway both carry the set.
Now, on the other hand, how much improvement can there be on a belted cartridge that is nearly improved already except for the neck angle? 2 or 3 grains, maybe 5 at the most? Even if you blow out the shoulder to 0.500" and move it forward to the 40 degree angle, I doubt that you'll get more than that. You could push the shoulder back, making the neck longer like it should be on the 300 Win. Mag., then blow the shoulder out a bit but your net gain in capacity will be slightly less than 1st method. In other words, start with the normal 300 Win. Mag. loads and work your way up just as if it was the standard cartridge.
Don't misunderstand me, I'm all for experimentation with cartridges and the answer of "because I want it" goes a long way with me. It is the ultimate reason for anything to do with firearms. It's just that there are better avenues to explore, in my opinion... no offense.
Best.
Isn't that the 308Baer or some other BR caliber? I know there is the 30hart (300 wthby imp) but what is the name of the 300win imp?
why chase the game when the bullet can get em from here?....
Got Balistics?
The 300 Jarrett is the 8mm Rem. Mag. necked down to .30 caliber.
And there are probably at least a dozen more that some out-of-the-way gunsmiths have done for special clients.
why chase the game when the bullet can get em from here?....
Got Balistics?
I don't have a drawing of either cartridge because they are both proprietary and the makers keep these pretty close. I suspicion that there isn't a nickles worth of difference between the two. All that has to change is a single significant dimension for either to qualify as proprietary. They are both successful long range target and hunting cartridges and I don't have a preference for either one over the other. Actually, I shoot the standard 300 Weatherby in one of my F-Class rifles but it doesn't have the factory freebore, only about 0.100" and a longer throat with a slightly different angle. I true the belts to be the same dimension from the rim and then fireform each case for contact at the shoulder as well. I neck size from then on until they get a little stiff to chamber.
I'm also working on a variation of David Tooley's .30 BooBoo, which is the 8 x 68S necked down to 30 caliber and improved. They're all pretty close to each other but the BooBoo is rimless and the other two are belted. David is shooting a 7mm BooBoo extremely well right now, also.
I want to play around with the 7mm STW and the 7mm Dakota for a while and see what those will do.
Sorry, I wondered...
Best.
Eric,
The P.O. Ackley books will give you a lot of information regarding the Improved cartridges and loading information. Be careful with the load info as Ackley was known to run a bit hot. Brownells and Midway both carry the set.
Now, on the other hand, how much improvement can there be on a belted cartridge that is nearly improved already except for the neck angle? 2 or 3 grains, maybe 5 at the most? Even if you blow out the shoulder to 0.500" and move it forward to the 40 degree angle, I doubt that you'll get more than that. You could push the shoulder back, making the neck longer like it should be on the 300 Win. Mag., then blow the shoulder out a bit but your net gain in capacity will be slightly less than 1st method. In other words, start with the normal 300 Win. Mag. loads and work your way up just as if it was the standard cartridge.
Don't misunderstand me, I'm all for experimentation with cartridges and the answer of "because I want it" goes a long way with me. It is the ultimate reason for anything to do with firearms. It's just that there are better avenues to explore, in my opinion... no offense.
Best.
One of the main reasons I went with the A.I. was for longer case life. I just want to be able to push a 220 grain pill at 2800 fps and I'll be happy! I might even end up using 210's. This is just a hunting set up. I had my gunsmith put a med weight Lilja barrel on it, along with a new Jewell trigger and a few other little things. I also had the rig cryo'ed to help with barrel life...used a 700 action.
My custom .338 Lapua is going to be my next project...that's going to be my 1000 yard rig...just have to get the $$$ together first[^]
Eric
allamericanarmsco@frontiernet.net
All American Arms Company
www.galleryofguns.com
VIP Code: AAAC
Veteran Owned and Operated
I typed in Powley computer and it took me to an advanced IMR reloading site. I don't have time to investigate right now but it would sure be a help(I hope) in determining what loads to start working up from when using VV in the new short/super short mags. VV produces a lot of power for it's burn rates.
We have the second amendment so that all the rest are secure....UNK>
http://www.nfa.ca/cfj-archive/reloading/powley-computer-instructions.html
The better bet is to use one of the new load calculating programs available as freeware or purchase.
http://stevespages.com/page8b.htm
I much appreciate the information. I am and will be digesting it for a while...no it isn't as good as the chicken-penne at Jensens Supper Club last night, but almost... I may need to do some upgrades to my computer to get it downloaded.
We have the second amendment so that all the rest are secure....UNK>
One of my favorite past times used to be stopping at Supper Clubs while on my way through Wisconsin. I can still remember some of those meals...
I didn't take the time for anything fancy last night but I had a batch of poblano sopa that was ready and a bowl of that with some homemade corn bread was pretty tasty. Simple pleasures.
I don't know what type of system that you're operating but some of the simple programs don't require much and are surprisingly helpful. It's better to start with those anyway, I think you learn more. Most if not all of the boxes these days come with math co-processors so running one of these programs shouldn't be hard on your system.
stevespages has a good list or you can do a search for "interior ballistics calculators" and see what other freeware is available. It's best to get your feet wet with some of the easier (and free) programs before jumping into something such as QuickLoad and QuickTarget. These are very powderful calculation programs and pretty pricey at $150.00 a copy.
There is an exterior program available in XL format that will run on a Palm or similar type PDAs which can be handy in the field when you have time to use it. It is based on the formulas by Arthur Pejsa and prove to be a bit more accurate than the traditional G1 calculations.
http://www.jacksonrifles.com/files/pejsa ballistics.xls
And Perry Systems Exbal:
http://www.perry-systems.com/
Best.
I have to ask is poblano sopa anything like Portuguese 'sopas'? Very spicy brisket soup/stew cooked all day and served over bread(cornbread in your case). I ask because my wife is Portuguese and that is on the menu often enough.
Anyhow, the information provided is great! I'm digging into it as I get the chance. I'm still working comparisons on the starting loads. I guess it shows that while I've been there and done a few things it still helps to ask questions. This would have helped tremendously working up Vihtavuori loads for my 25 WSSM. In determining a starting load for that I went with the minimum of 4350 and dropped a couple grains. At the range the feeling was it was going to be an anemic load...instead it started out way too hot! backing off a grain still showed too hot. I immediately dropped 4 gr. and began working up...as opposed to being on the wrong side of this working down. One factor that I didn't interpolate in was the difference that same powder was reduced in the short magnums vs. the regular magnums when using 4350 vs. Vihtavuori. I only used similar cases for comparison. Thanks again for the information. -Todd
We have the second amendment so that all the rest are secure....UNK>
Now you've gone and done it![:D]
Does she do carryout?
Please ask you wife if she is willing to share her 'stew' recipe with me. I've sent the Poblano Sopas recipe to you via e-mail. They are not the same, this is just a simple cream pepper soup, no meat. But the flavor is out of this world! Very deep and rich, almost velvety, perfect for the cooler times of the year.
Just a couple of observations about these programs. I know that you are smart enough to recognize this but I will pass it on anyway.
All of this data that is produced through these programs is for reference only. There are simply too many variables out there for a generic calculator to take into account accurately. But, it does provide a good reference point from which to check your loads against the books to see if you're in the ball park.
The Powley computations are based on IMR powders alone. Go carefully when trying to generate data for other powders.
Always "shoot your loads in" when checking the electronic generated drop charts especially for the longer ranges. Most of these work on the G1 calculations and the G5 calculations are better suited. The G5's give a lower BC and it makes the manufacturers look bad until you start to compare all of the BC's generated in the G5 design. So shoot the loads and measure the drops on the target, then write out your come ups and drift.
The machines stopped, I have to get back to work.
Best.
Here's the electronic Powley computer. The original cardboard slide rule types are hard to find but this will work O.K.
http://www.nfa.ca/cfj-archive/reloading/powley-computer-instructions.html
The better bet is to use one of the new load calculating programs available as freeware or purchase.
http://stevespages.com/page8b.htm
NN...do you have a current link for the powley computer? Thanks!
WOW! You really had to dig back for this thread!
Current Powley electronic computer:
http://kwk.us/powley.html
Best.
ECC,
WOW! You really had to dig back for this thread!
Current Powley electronic computer:
http://kwk.us/powley.html
Best.
Thank you!
BTW...do you know of an online source that might give me a tutorial on how to use the Powley Computer??? Thanks again!