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Glock 34 Load


the duck of death

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I'm currently infatuated with N310 under a 147. Load long, (I'm at 1.165) watch pressure and enjoy the softest minor 9mm load I've found. I've tried them ALL.

Clays is also very good, titegroup is the safest cheapest alternative, Just very dirty at minor PF under heavy bullets.

Who makes a 158 JHP? :)

SA

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Steve how much clays and 310 are you using. I currently use vv320 and think that is pretty good. I have been thinking about getting a pound of clays and giving it a try. I would be more economical than VV's. But depending on how much powder I could cut off the 310 might be more economical than the 320.

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vv 310 2.7 762 779 747 32

vv 310 2.9 783 804 767 36

vv 320 3.1 791 801 773 27

vv 310 3.1 822 832 806 26

vv 320 3.3 846 859 832 26

vv 310 3.3 857 868 846 21

vv 320 3.5 871 880 858 22

vv 310 3.5 900 915 898 16

This is from last week's test. All are zero 147 hp @ 1.165, gun is beretta Elite II w/ LTT Bar-sto barrel.

Numbers are from L-R Charge, Avg. Velocity, High, Low, Extreme spread. 10 rounds were fired, temp 55 degrees.

The 3.3 of 310 is at 126 pf, good locally, I might go 3.4 to meet the chronoman. The flip is noticably less with the 310, all the brass looked fine.

Like I said, softest 125 PF load I've found. Thanks to matt burkett for the tip.

SA

I don't have the exact Clays data right now, I was using different bullet and it was seated too low for Clays. I'm going to run Clays again with the zero bullet and will let you know. It was ib the 3-3.4 range.

SA

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  • 2 weeks later...

The following formulas shoot well for me.

---------------------------------------

Powder = AA7 (5.4gr)

Primer = WWSP

OAL = 1.115" on up to whatever fits mags

Bullet Wt.: 147 gr. (Hard Cast LSWC .356")

Muz. Vel.: 875 fps

Power Factor = 128.625

Powder = AA7 (7.3gr)

Primer = WWSP

OAL = 1.095"

Bullet Wt.: 124 gr. (Remington "Golden Sabre" JHP .355")

Muz. Vel.: 1017 fps

Power Factor = 126.108

Firearm: Glock 19 Caliber: 9x19

---------------------------------------

I have used almost the same data for 9x21 in a Glock 17L (6.5" bbl) and get the following:

Powder = AA7 (5.4gr)

Primer = WWSP

OAL = 1.140" on up to whatever fits mags

Bullet Wt.: 147 gr. (Hard Cast LSWC .356")

Muz. Vel.: 915 fps

Power Factor = 134.505

Powder = AA7 (7.5gr)

Primer = WWSP

OAL = 1.170" (no shijt)

Bullet Wt.: 124 gr. (Remington "Golden Sabre" JHP .355")

Muz. Vel.: 1090 fps

Power Factor = 135.160

---------------------------------------

The 147 load shoots softer, but doesn't always lock'er back when empty. The 124 loads are a bit snappier, and do lock the slide back.

Regards,

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Be careful loading heavy bullets with fast powders.

That is exactly why I like AA7 under a 150ish 9mm. Slow enough for the heavier projectiles, but still works for lighter bullets at decent velocities.

Regards,

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has anyone tried light and heavy bullets in MINOR loads?

I would think the heavier bullets would have a slow and sluggish slide action, and more (relatively speaking) muzzle flip (larger suface engagement area in the barrel, more torque). This is generally true with MAJOR, where bullet weight is the only variable, shooting at same PF.

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I've shot 115, 124 and 147 all loaded to 130 to 132 pf using vv320 over the last 3 seasons. The 147 have been the most pleasant to shoot, and most accurate. Yes, BigDave, you're right the 147's have more flip. This became an issue to the point where I had to replace the extended slide stop with a stock one on my 34. With the lighter weight bullets my finger never hit the extended one but with the heavy bullets the gun would flip far enough around to contact my strong hand thumb which rested on my support hand but very close to the gun. Splits are about equal with all the bullets. At first with the 147's my 34 didn't track correctly, but after adding a shokbuff the tracking improved and brought the splits down to where they should be for my skill and shooting style. At the end of the day give me the 147's.

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IMHO HTR is correct. I use the 147gr at just around 900fps when I shoot minor, and it is soft, has minimal flip, and is very accurate. A definite improvement over a snappier 124gr load at equivalent power factor.

I can't say that I have done enough controlled testing to disprove the laws of physics, but the 147 load at a *similar power factor seems to be more reliable in "one shot popper drops" than the 124gr load. My minor technique on steel is to shoot, and move on, because of the longer reaction time for minor loads on steel. I then come back if required. I flat out have less "come-backs" with the heavy bullet at similar power factor.

(*Note: the data in my earlier post shows the 124gr load being compared is actually 2 PF hotter load than the 147gr load)

Regards,

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  • 4 weeks later...

Minor powerfactor 9mm load questions come up every so often so I figured I'd post an update to this thread.

Experiment Update:

I worked up loads using a WCG 147 over 310 and a zero 147 over 310 and compared them to my current load using vv320 with a WCG 147.

Steve wasn't kidding when he said in a earlier post that 310 was soft. It made my 320 load seem like a cannon.

Pure accuracy was all about the same but the 320 load might have had a very slight edge over either of the 310 loads. But when I shot some test drills on IDPA targets at 17 and 25 yards my points down dropped about 50% (ie. 13 points down with 320/wcg load and 7 with the 310/zero load [drills were run more than once and percentage was fairly consistent]).

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since i've been using montana gold 115gr jhp's with vvn320 4.5-4.6gr at 1.135 oal, i've won the last three matches.

i really don't think it's the load, but more what the shooter is happy with. if you're confident enough with the load you're using then stay with that load.

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