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Thoughts tonight on ammo reloading...

This is a discussion on Thoughts tonight on ammo reloading... within the Ammunition forums, part of the M14 M1A Forum category; Have been looking at and considering the loads listed in my Hodgdon Vol 26 (1993) and Hornady Vol 6...(2003) Hornady's are the same as my ...


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Old March 16th, 2017, 07:53 PM   #1
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Thoughts tonight on ammo reloading...

Have been looking at and considering the loads listed in my Hodgdon Vol 26 (1993) and Hornady Vol 6...(2003) Hornady's are the same as my Vol 9...

Question: Has there been any powder updates? Does the same old load data apply to today's availiable powders? Are the same old powders listed measured and loaded the same? Seems loads were lower back then?

M14/M1A loads


Last edited by JEFFJP_N_JJ; March 16th, 2017 at 07:58 PM. Reason: info
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Old March 16th, 2017, 08:48 PM   #2
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Data changes over the years. The powder companies will source product from different manufacturers for the same label as time goes on. Using updated books keeps up with any changes that result.

FWIW Sierra bullets retests all their load data and you can see where powder charges change over the years for the same powder and bullet.

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Old March 16th, 2017, 09:37 PM   #3
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This link will get you the latest update for Hodgdon Powders
Rifle loads:
http://www.hodgdonreloading.com/data/rifle
Pistol:
http://www.hodgdonreloading.com/data/pistol

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Old March 17th, 2017, 06:09 AM   #4
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Hogdon has gone thru several (4 or 5 at least) powder suppliers since they started in business with military surplus powders. Each supplier's formula is slightly different in behavior and even within the same supplier's runs, the powder will show different behaviors just due to the way the chemicals combine. That's why when you are forced to change batches of powders you should redue your ladders. For most of us, we aren't good enough to see the difference but the real pros can tell (catch a benchrester and ask him if the powder batch makes a difference). The danger comes in when you are at the upper edge pushing for all the fps's you can get. Then even the primer makes a serious difference i.e. Rem 9 1/2 vs #34's. I know it is a pain to have to redue your ladder when you get a batch of powder but if you are at the ragged edge it is safer. That's why we get 8 lbs at a time(when available and we can afford it). The newer manuals address what is currently available from the manufacturer and should be used. Go put holes in targets.

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Old March 17th, 2017, 06:39 PM   #5
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Quote:
Originally Posted by boomerpusher View Post
Hogdon has gone thru several (4 or 5 at least) powder suppliers since they started in business with military surplus powders. Each supplier's formula is slightly different in behavior and even within the same supplier's runs, the powder will show different behaviors just due to the way the chemicals combine. That's why when you are forced to change batches of powders you should redue your ladders. For most of us, we aren't good enough to see the difference but the real pros can tell (catch a benchrester and ask him if the powder batch makes a difference). The danger comes in when you are at the upper edge pushing for all the fps's you can get. Then even the primer makes a serious difference i.e. Rem 9 1/2 vs #34's. I know it is a pain to have to redue your ladder when you get a batch of powder but if you are at the ragged edge it is safer. That's why we get 8 lbs at a time(when available and we can afford it). The newer manuals address what is currently available from the manufacturer and should be used. Go put holes in targets.
Accurate and Alliant's done the same thing.

Accurate's sourced powders from Israel and the Czech republic and Alliant seems to bounce between getting their powders from Sweden and/or making them at Radford.

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Old March 17th, 2017, 07:33 PM   #6
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Thanks guys I understand some of this but was just wondering why nothing has changed in the load data from my Hornady Vol 6 to my newer Vol 9... will not buy the Vol 10 unless there is some difference besides bullets?

Guess the powders used have not changed?

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Old March 18th, 2017, 04:17 AM   #7
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There a few other things.

Commercial propellants are blended to maintain some consistency Several lots of, say 4895, are mixed in varying proportions, so the energy output and burning characteristics match the "standard". So, while there are variations over the years, their general performance remains similar.

Hornady also is rather conservative in their recommendations, so the minor variation over the years do not result in dangerous conditions. If your expecting Hornady's data to give reliable velocities for charge weights, your going to be disappointed.

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Old March 18th, 2017, 08:12 AM   #8
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Alliant's new wonder powders with temp insensitivity and copper deterrent are made by Bofors in Sweden. As is RE15.
So much for those who say: "Alliant because I Buy American".

Sierra's manuals are very conservative when you compare them to the powder companies' online data.

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Old March 18th, 2017, 12:09 PM   #9
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IMR is from Canada these days . . . .

If you have to have US made propellant buy ball propellant, St Marks, FL.

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Old March 18th, 2017, 12:11 PM   #10
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Buddy of mine called me this afternoon to tell me that he sheared the lugs off the bolt of a Pre-64 Model 70 Winchester. Any time you get a new batch of powder, reduce the charge and work back up. Powders sometimes have differences in burn rates. Better be safe than sorry; pay attention to established data. That's a lot of pressure going off, very near your face.

Good luck

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Old March 18th, 2017, 12:29 PM   #11
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I got into hand loading in 1992. At that time I purchased the Lee volumetric scoop powder measure kit. It came with about 15 scoops from 0.3 cc up to about 4.3 cc volume with a slide rule type powder charge card with powder weights for each scoop size for about 100 different manufacturer/powder brands.

Fast forward. Last year I bought a brand new second set as a backup to have since I had lost a couple of scoops over the years from my original set. It likewise contained the same slide rule style card calculator.

I compared the powder weights between the two cards for all the powder types I normally use and found NO changes over 24 years. Not even a tenth of a grain. Please note that I did not check EVERY piece of data on the card, only about 10 of the 100 listed that represented what I normally use.

Take that for what it's worth as one piece of data.

Regards,
Badger

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