Looking for data 30-06
- Thread starter regulate34
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I havent' used either of those combinations, but you can check out the Hodgdon site. It's a good start.
http://data.hodgdon.com/main_menu.asp
http://data.hodgdon.com/main_menu.asp
I would recommend you get yourself a couple of good reloading manuals.
Lymans has a good manual with data that is not specific to one bullet or powder manufacture.
For general loading info...The ABC's of reloading is a good start
Lymans has a good manual with data that is not specific to one bullet or powder manufacture.
For general loading info...The ABC's of reloading is a good start
That's sound advice... with a caveat:
Some bullets are longer than others for the same weight.
Using the same COAL for a longer bullet will end up in higher pressures. (bullet un-specific data leads to this.)
This is not as critical for 30-06 (having a big case capacity) but something to remember nevertheless.
Good point to bring up and very true...
I never use the oal's in the tables, I measure the distance to the lands and then back the bullet off 2-3/100ths for starters.
I will also look at several sources for info as you will find the min & max loads can vary from one source to another.
Brass length is also important
You will continue to learn as you go....
I don't think you can have too many...
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Thank you sir.
H4831: I have never proven that to be true or untrue... In my opinion though it seems logical that if you take two identical cases, with equal amounts of powder and seat bullets of different lengths in each to the same COAL, one case will have that same amount of powder in less space and would therefore create more pressure.
Given that I do not yet own a chrono and when I shoot my reloads I only look for signs of overpressure while trying to get the tightest group, I cannot offer any concrete evidence to support either statement at this time.
Seating depth affects accuracy, but it could it simply be attributed to the jump and not jump and pressure.
Legion: Excellent Data!
Given that I do not yet own a chrono and when I shoot my reloads I only look for signs of overpressure while trying to get the tightest group, I cannot offer any concrete evidence to support either statement at this time.
Seating depth affects accuracy, but it could it simply be attributed to the jump and not jump and pressure.
Legion: Excellent Data!
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The great era of recreational shooting in north America, which I continue to call the glory years of shooting, in spite of some of you who are getting tired of hearing it, started a couple years after WW2 and lasted for about fifteen years.
Hand loading just exploded---oops, that wasn't the right word.
Hand loading multiplied tremendously during this time. There were as many as seven or eight monthly magazines in the US dedicated to shooting, each with its own shooting editor. There were many famous experimenters working on every type of experiment and wildcat cartridge they could dream up. The well known gun writers, such as Jack O'Connor, Elmer Keith, Warren Page, et all, who we now talk of in nostalgia, were in their hay-day.
It is hard to imagine any phase of hand loading that did not get thoroughly examined at that time.
Now, to what I wanted to point out.
There were no large hand loading books, like what we know today. The powder companies printed masses of one or two page charts showing the loads of different cartridges and distributed them to every store that sold components, where they were given free to anyone who wanted one.
All of these charts had five pieces of information on them for each cartridge. This was, bullet weight, type of powder, charge, velocity and the last column was pressure developed.
No other information was given.
Nothing on case length.
Nothing on COAL.
Nothing on type of primer.
There was no min. or max. on powder. The amount of powder was simply called "charge." Most charts had a caution at the start that it was a good idea to start a new load down a bit.
In other words, a bullet was judged completely by weight and all bullets for that particular cartridge of the same weight, were treated equally.
In short, reloading was simple and enjoyable, without interference from big companies promoting their particular component and all the legal interference to protect themselves from getting sued.
I still have some of those old loading charts and if need be, I could post a picture of one of them.
Ellwood Epps printed loading charts in some of their old catalogues. In the 1962-63 catalogue they printed the Hodgdon loading chart and in the 1964-65 catalogue they printed a Du Pont loading chart.
H4831
It has been proven and written about in reloading manuals and by people with chronographs and strain gauge pressure measuring equipment.
The .223 and 5.56 are a very good example, both cartridges are loaded to the exact same chamber pressure when fired from a chamber/throat designed for that cartridge. "BUT" when you fire a military 5.56 cartridge in a shorter commercial SAAMI throat the chamber pressure goes up approximately 8,000 psi. If you fire a commercial .223 cartridge in a AR15 rifle the chamber pressure is 8,000 psi lower. These pressure variations are caused by the distance from the rifling/throat length of the bullet.
Below, pressure variations with the same powder charge and bullet, the top graph is a cartridge case with the least amount of case capacity, the bottom is a case with the most capacity. (internal volumes) And with approximately 7,000 psi difference in chamber pressure.
Bottom line, case capacity and the amount of bullet jump effects chamber pressure.
I got mine from Neconos online.
I looked for any kind of distributor at the time but found none.
