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MarkC · 05-13-2005, 01:54 PM

Bob,

Here is some ballistic information from an old post that I did on reloading .30 Luger ammo

Mark

As it turns out I have been using my CED Millenium chronograph in working up some loads so you might find this data of interest. I shoot 15 to 30 rounds when developing a load, more than most people do because I find 5 shots not enough to fully test my reloads. The data gathered is 10' from the muzzle shooting indoors using the infrared lights in 70 degree air temperature.

I used brand new Winchester brass with Winchester small pistol primers and Hornady .30 cal. Luger 93 grain .308 soft point RN bullets. The heads were seated to the crimping groove. I use a dillon 650 press and seat and crimp in two different stages.

Two guns were used to test my loads, a 1920's commercial with standard length barrel (gun was rebarrelled some time ago with a German barrel)and an Interarms "Mauser" 1970's vintage with a six inch barrel. I test for shot to shot consistancy since I believe this makes the load consistant for accuracy.

Here are the results:

Best load
4.5 grains of 231
30 rounds through the commercial gun with an average of 1,160fps and a standard deviation of 6, the extreme spread was 35!

20 rounds through the 6" barrel with an average of 1,214fps, a standard deviation of 11 and extreme spread of 41.

The commercial gun shot consistantly better than the Mauser 6" in terms of std and es.

Another good load was 4.7 grains of 231 with the commercial gun getting 1,189 fps a std of 6 and es of 37. A little faster than the 4.5 grains and equal in consistancy, 30 shots fired.

The 6" with 20 rounds yielded 1,254fps average, std of 11 and 46 es.

To make it more interesting I tested two commercial brands of ammo and here is what I got.

Fiocci Ammo
30 rounds fired in the commercial gun with 1,028fps average, a standard deviation of 26 and extreme spread of 123. My reloads are much better!

Lapua
29 shots fired in the commercial gun with 1,090fps average, a standard deviation of 13 and extreme spread of 52 much better than the Fiocci but still not as good as my reloads!

05-13-2005, 01:54 PM	#5
MarkC User Join Date: Jun 2002 Location: Boston, MA Posts: 482 Thanks: 1 Thanked 126 Times in 29 Posts	Bob, Here is some ballistic information from an old post that I did on reloading .30 Luger ammo Mark As it turns out I have been using my CED Millenium chronograph in working up some loads so you might find this data of interest. I shoot 15 to 30 rounds when developing a load, more than most people do because I find 5 shots not enough to fully test my reloads. The data gathered is 10' from the muzzle shooting indoors using the infrared lights in 70 degree air temperature. I used brand new Winchester brass with Winchester small pistol primers and Hornady .30 cal. Luger 93 grain .308 soft point RN bullets. The heads were seated to the crimping groove. I use a dillon 650 press and seat and crimp in two different stages. Two guns were used to test my loads, a 1920's commercial with standard length barrel (gun was rebarrelled some time ago with a German barrel)and an Interarms "Mauser" 1970's vintage with a six inch barrel. I test for shot to shot consistancy since I believe this makes the load consistant for accuracy. Here are the results: Best load 4.5 grains of 231 30 rounds through the commercial gun with an average of 1,160fps and a standard deviation of 6, the extreme spread was 35! 20 rounds through the 6" barrel with an average of 1,214fps, a standard deviation of 11 and extreme spread of 41. The commercial gun shot consistantly better than the Mauser 6" in terms of std and es. Another good load was 4.7 grains of 231 with the commercial gun getting 1,189 fps a std of 6 and es of 37. A little faster than the 4.5 grains and equal in consistancy, 30 shots fired. The 6" with 20 rounds yielded 1,254fps average, std of 11 and 46 es. To make it more interesting I tested two commercial brands of ammo and here is what I got. Fiocci Ammo 30 rounds fired in the commercial gun with 1,028fps average, a standard deviation of 26 and extreme spread of 123. My reloads are much better! Lapua 29 shots fired in the commercial gun with 1,090fps average, a standard deviation of 13 and extreme spread of 52 much better than the Fiocci but still not as good as my reloads!