Author Topic: Load Testing - Accurate No5  (Read 1241 times)

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Offline Wobbly

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Load Testing - Accurate No5
« on: October 03, 2019, 02:51:22 PM »
It was a wonderfully clear day. The hot weather finally promised to brake and it was only going to be 94°F or so. A friend had given me several pounds of AA No5 so I decided a test was in order. I love AA No7 in 38 Super, and I use a lot of AA No2 with 38Spcl wadcutters, so I was familiar with the product line and very interested to get shooting.






Background Info
Caliber:  9x19 Luger
Bullets:  Precision Delta 124gr JHP
Brass:    Win
Powder:  Accurate (Ramshot) No5
Max Velocity:  1027fps (per Western Powder booklet V7.0)
Primer:  CCI
OAL:     1.110"
Pistol:   SP-01 Tac with 16# recoil spring
Qty:      8 rounds each, slow fired
Weather:  90°F, humid and clear
Chrono:    ProChrono DLX
Powder Measure: Dillon (modified)

Load      Avg Vel           ES        SD
4.6gr          777              60        20
4.8             816              61        17
5.0             872              82        25
5.2             911              82        26
5.4             943              82        27
5.6             979              51        16
5.8            1012             45        15

NOTES
• Metered very well due to small grain size. These may be the best metering powders on the market.
• Fine grains of this powder will funnel right through a missing primer, making a mess of your press in the process
• Burned remarkably clean, even at 4.6gr  (See photo below.)
• Attribute the strange SD numbers to the powder and not my reloading technique. With the way this stuff meters, I was expecting much lower numbers.
• I wonder if the hotter Federal #100 SPP would ignite the ball powder better, and thereby lower the SD numbers ?
• Will not achieve PF for competition, recommend 5.6-5.8gr for general plinking
• There were numerous "stove pipes" at 4.6gr
• Consistent slide 'lock back' achieved at 5.0gr
• Loads up to 5.0gr could be double loaded. Above that there would be noticeable spillage.
• This is a true, fine grained 'ball powder'. Any spillage is an issue due to the extremely fine grain of this powder. This stuff will really make a mess in no time flat because it's small enough to get into cracks and joints.
• I believe No7 is too slow for 9mm competition, so I was hoping that No5 would slip right in there and do a good job of filling the gap. It failed at this task. I'm really wanting to like this powder, so I'll try No5 in 38Spcl and see what the results look like. Maybe it will do better at lower pressures.
• I would NOT buy or use this powder for 9mm
« Last Edit: October 04, 2019, 09:32:37 AM by Wobbly »
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Offline Wobbly

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Re: Load Testing - Accurate No5
« Reply #1 on: October 03, 2019, 03:16:47 PM »
All gone...


Look how clean these cases are...




 ;)
« Last Edit: October 04, 2019, 09:34:18 AM by Wobbly »
In God we trust; On 'Starting Load' we rely.

Ask me about used Dillon reloading equipment.

Offline M1A4ME

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Re: Load Testing - Accurate No5
« Reply #2 on: October 03, 2019, 05:24:50 PM »
I used a good bit of AA#5 for .357 SIG, .45 acp and .40 S&W.  I was not impressed with accuracy, but maybe it was the pistols I was shooting the ammo in, not the powder.  I used it for jacketed, plated and cast lead.

I have bought some AA#7 to try in 9MM.
I stopped carrying the SIG 556R.  SIG changed models and couple/three times and stopped supporting it with parts.  So, I stopped supporting SIG.  Back to the tried/true AR15 Carbine.

Offline Dan_69GTX

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Re: Load Testing - Accurate No5
« Reply #3 on: October 04, 2019, 09:46:18 AM »
As the song says: "I can see clearly now, the rain is gone pics are there"
Some trust in chassis, Some in Horsepower, But we trust in the Lord our God.

If it goes "boom" or "vroom" I'm intersted.

Offline Wobbly

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Re: Load Testing - Accurate No5
« Reply #4 on: October 04, 2019, 11:37:10 AM »
Back at it again this morning. Yesterday's test left me with more questions than real answers. So I remade the 5.6gr and 5.8gr loads again, and the only thing I changed was the primer. These are as much like yesterday's loads as I can possibly make.



Same gun
Same range
Same bullets & powder
Same OAL
Same chrono
Same weather, light conditions and time of day
Federal #100 SPP


Load      Avg Vel           ES        SD
5.6gr          953              20        07
5.8           1006              21        07


NOTES
• So the extreme spread of the loads was cut in half using Fed #100, which in turn lowered the SD numbers to an area I would expect for such a highly controlled test sample set.

• However, the powder did all this without changing the chamber pressure (the powder burn characteristics), because bullet velocities did not change. So the improved SD numbers are purely from more consistent primers.

• I don't think we can draw any negative conclusions about CCI primers. It could just be this sample's age, storage history, or lot number. More testing is definitely needed.

• However, we can draw some positive conclusions about Federal primers. This test makes me want to go compare the standard Federal 100 against the Federal GM100 Match primers. Would the SD's drop even more ??
« Last Edit: October 09, 2019, 09:44:25 PM by Wobbly »
In God we trust; On 'Starting Load' we rely.

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Offline Dan_69GTX

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Re: Load Testing - Accurate No5
« Reply #5 on: October 04, 2019, 02:35:01 PM »
FYI - Your last pic isn't showing

WOW - What a difference.

I've been meaning to do more testing with primer differences.  The only test I've done so far was for  federal small pistol magnum vs S&B small pistol.  Don't think I kept track of the SD, just average speeds  (fed mag was slower).

https://czfirearms.us/index.php?topic=94945.msg728514#msg728514

Now you have wet my appetite.
Some trust in chassis, Some in Horsepower, But we trust in the Lord our God.

If it goes "boom" or "vroom" I'm intersted.

Offline M1A4ME

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Re: Load Testing - Accurate No5
« Reply #6 on: October 04, 2019, 05:35:08 PM »
Are the federal primers "hotter" or "colder" than the CCI primers?  Or did you say so and I missed it.

I know, in rifles (and pistols for magnum loads) they recommend magnum primers for ball powders but I seldom use them.  Heck sometimes use magnum primers for compressed loads of slow burning powders.  I've not seen a difference in groups and have no idea about velocity or standard deviation.

But I'm still curious whether the "good" primers in your test are hotter or colder than the "bad" primers (or not so good primers.)
I stopped carrying the SIG 556R.  SIG changed models and couple/three times and stopped supporting it with parts.  So, I stopped supporting SIG.  Back to the tried/true AR15 Carbine.

Offline painter

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Re: Load Testing - Accurate No5
« Reply #7 on: October 04, 2019, 07:06:42 PM »
I had the right to remain silent...

but not the ability.

Offline armoredman

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Re: Load Testing - Accurate No5
« Reply #8 on: October 06, 2019, 06:02:28 AM »
You are having fun, I see. :) I used very little Number 5 for 9mm, was always Number 7 or 2. Thanks for the detailed info!

Offline FALer

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Re: Load Testing - Accurate No5
« Reply #9 on: October 06, 2019, 01:14:10 PM »
Love these threads.

They slowly help me gain sophistication.

Nate

Offline Wobbly

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Re: Load Testing - Accurate No5
« Reply #10 on: October 09, 2019, 09:47:26 PM »
Love these threads.
They slowly help me gain sophistication.


Huh ?

Is it the cane or the top hat ??
In God we trust; On 'Starting Load' we rely.

Ask me about used Dillon reloading equipment.

Offline skin

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Re: Load Testing - Accurate No5
« Reply #11 on: October 10, 2019, 01:04:45 AM »
 I also have found that using warmer primers for ball powder and slow burning  powders have helped accuracy and consistency. I've been testing Enforcer powder by ramshot for  22 hornet and 45 acp. Extremely fine ball powder. Ramshot  recommend using magnum primers.

 

anything