Rounds in the last month

Here is an update on the total number of rounds I have reloaded:

223.LOG: 2027 rounds.
3006.LOG: 467 rounds.
300WIN.LOG: 1351 rounds.
40SW.LOG: 38807 rounds.
45.log: 0 rounds.
9MM.LOG: 21636 rounds.
Total: 64288 rounds.

This is a delta of 3064 rounds since last month. This is composed of 1,137 rounds of .40 S&W and 1,927 rounds of 9mm. So far this year I have reloaded 6,859 rounds.

This morning I ran some bullets over the chronograph using the ETR7 powder I got last month. Using the Montana Gold 180 grain JHP and the loads suggested somewhere else I tried 4.5 grains and 4.8 grains with an OAL of 1.135. The results were a little lower velocities than what I expected. All tests were with the muzzle 10 feet from the first screen of the chronograph and an ambient temperature of 32F. The low temperature may have affected the velocities some but I need to be able to make major power factor (165) even when it is cold out.

4.5 grains of ETR7:

Mean Velocity: 861 fps
Standard Deviation: 17.5 fps
Minimum Velocity: 832 fps
Maximum Velocity: 891 fps
Extreme Spread: 59 fps
Power Factor: 155.07

4.8 grains of ETR7:

Mean Velocity: 891 fps
Standard Deviation: 20.6 fps
Minimum Velocity: 864 fps
Maximum Velocity: 935 fps
Extreme Spread: 71 fps
Power Factor: 160.54

The suggested max load is 5.0 grains. But what I need to do is check the primers of the 4.8 grain loads before bumping the load up to the max. And if linear interpolation is valid for this range of loads 5.0 grains isn’t going to get me into major.

5 thoughts on “Rounds in the last month

  1. joe:

    long ago i purchased a colt 1911 in 9x23mm winchester …. essentially a .38 super + p with a 9mm luger or a .223 remington case head, depending on how you look at it. (i will never run out of brass, as all i have to do is trim “founds” in .223 to the appropriate length, and perhaps inside neck ream.)

    the case was made heavier than the .38 super, as people striving to attain major were blowing out case heads in the super.

    i shot it in a few “practical” competitions, but gave it up as i thought the scenarios stupid, and most of the competitors a bit shrill and hyper for my tastes. nonetheless, were i to shoot “practical” competitions again (which i will never do, as they are, well, just not “practical” at all) in anything other than .45 acp, it would be with the 9x23mm. i think it especially easy to make major with it now, given that the major levels have been decreased to keep people from blowing up guns.

    why don’t you give the cartridge a try. the 1911 seems to handle them w/ alacrity, and mine is pretty accurate with it.

    john jay

    p.s. nope, i don’t want to sell it. it is one of 200 pistols made by colt (my understanding is that perhaps springfield and kimber made a few more factory guns, but i don’t know this for sure), and it is a beauty. very nicely done.

    i should think it somewhat easier on the system than the .40 s&w, and a good deal more manageable under recoil.

    have fun.

    • I have a lot invested in .40 S&W and am happy with the caliber. I can make major with any number of powders if I can find the powder. I have two pounds of Longshot that I’m having difficult getting the velocities as low as I would like.

  2. 40SW major @1.135″ You need to use Hodgdon Titegroup. I have friends that like feel of Hodgdon Universal probably because it’s at a lower pressure point for the same PF. All the cool kids use VV N320.

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