Quickload Question?

[wv109323]

I am faced with a unique reloading situation.
I have a CZ pistol that has a large bore size. I need to use a .358 bullet in order to stabilize my cast boolits. In order to keep the bullet out of the lands I need to seat it very deep in the case with an OAL of 1.025".
Of course seating the boolit deep drives the pressure up quickly. I need to figure out what the max. load is using WW231 without exceeding the pressure limits. I need to get to 1100 fps to make power factor.
If I give someone all the info can you run Quickload to see the max. load? Either PM or respond here. Thanks

[popper]

I assume 9mm? OAL is not the number to use, seating depth is, as is bullet weight. QL is not that great with straight wall cases. Best method is chrony and start low.

[whisler]

Sent my CZ barrel to Dougguy and had it throated. No more deep seating necessary. Good work and reasonable cost.

[wv109323]

This barrel has been throated by Dougguy also. The bore is .3565 and I need a .358 bullet. The mold I have is a Lee 125 RNFP to get a bullet big enough to stabilize. The .358 body of the boolit extends above the crimp groove and I need to seat deep to keep the body of the boolit away from the lands. If the boolit hits the bore then a slight amount of lead is shaved and accumulates at the front of the chamber. After 20 or so rounds a round will not chamber.

[Flailguy]

If the barrel has already been throated it should let you seat out as long as you want.
The boolit you are using typically needs to be seated deep. You would likely have better luck with a TC type boolit.

[Thin Man]

Could powder coating allow you to use the 125 RF boolit mold you already have? I am just now getting started with the PC process for handloading examples just like yours, only different calibers. I want to use a Lee 311-93 RN design in 30 Luger, 7.62x25, 7.63x25 and the top lube groove will be above the case neck to get correct COL for reliable feeding. Just a suggestion, but worth looking into.

[whisler]

My throated CZ barrel allows me to seat the Lee 125 RF to 1.08.

[wv109323]

Thin Man- The 125g RNFP is a .358 mold for the .357 Mag. It is big enough as cast and sized. I have a 120g. TC mold that is 9mm( .356) and it is not big enough. I did powder coat some but the groups were terrible with the first loading. (4.0 g of W231)
I think I have found most of my problems where I can load longer OAL.

[358429]

If you are interested in a different bullet design..mp molds sometimes has available 359-125 hollow point mold.

I size 358 and charge 5.1 power pistol.

I don't know what power factor that is, I can say without a doubt it is more accurate and cleaner than fmj that I have tried.

My cz is completely stock except for parts wear from extended shooting.

I seat these to 1.095 after powdercoat and never have a lead deposit problem anywhere.



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[P Flados]

As previously noted, Quickload is not known to be great with straightwall handgun rounds.

However, I ran some stuff given the request:

Cartridge          : 9 mm Luger (SAAMI)
Bullet             : .358, 125, LEE 358-125-RF
Useable Case Capaci: 7.626 grain H2O = 0.495 cm³
Cartridge O.A.L. L6: 1.025 inch = 26.04 mm
Barrel Length      : 4.6 inch = 116.8 mm
Powder             : Winchester 231

Predicted data by increasing and decreasing the given charge,
incremented in steps of 3.175% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms

-31.7   64     3.41    914     232   18449   2605     98.8    0.630
-28.6   67     3.57    946     248   20317   2713     99.4    0.602
-25.4   70     3.73    978     265   22311   2812     99.8    0.577
-22.2   73     3.89   1009     282   24436   2903    100.0    0.554
-19.0   76     4.05   1039     300   26699   2985    100.0    0.532
-15.9   79     4.21   1068     317   29108   3065    100.0    0.512
-12.7   82     4.37   1097     334   31669   3145    100.0    0.494  ! Near Maximum !
-09.5   85     4.52   1125     351   34392   3224    100.0    0.477  !DANGEROUS LOAD-DO NOT USE!

[358429]

P flados may I ask you to run that ballistics program with my bullet and 5.1 grains power pistol?

My bullet is 0.59 inches long and cartridge overall length is 1.095 inches.

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[P Flados]

I ran the table and cut it off at 103% load density. With 9mm I really do not like compressed as case capacity varies so much and this makes for big swings performance due to load density changes.

You did not say anything about caliber, bullet weight, bullet diameter, or barrel length, so I left these as they were in the previous run.

Cartridge          : 9 mm Luger (SAAMI)
Bullet             : .358, 125, LEE 358-125-RF
Useable Case Capaci: 7.549 grain H2O = 0.490 cm³
Cartridge O.A.L. L6: 1.095 inch = 27.81 mm
Barrel Length      : 4.6 inch = 116.8 mm
Powder             : Alliant POWER PISTOL

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.887% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms
-09.4   87     4.80    983     268   19297   3558     75.2    0.601
-07.5   89     4.90   1002     279   20280   3671     76.2    0.587
-05.7   91     5.00   1022     290   21305   3784     77.2    0.573
-03.8   92     5.10   1042     302   22372   3898     78.2    0.560
-01.9   94     5.20   1062     313   23485   4011     79.2    0.547
+00.0   96     5.30   1082     325   24643   4124     80.1    0.535
+01.9   98     5.40   1102     337   25850   4237     81.1    0.524
+03.8  100     5.50   1122     349   27108   4350     82.0    0.512
+05.7  101     5.60   1142     362   28418   4462     82.9    0.501
+07.5  103     5.70   1162     375   29783   4573     83.7    0.491  ! Near Maximum !

[358429]

I ran the table and cut it off at 103% load density. With 9mm I really do not like compressed as case capacity varies so much and this makes for big swings performance due to load density changes.

You did not say anything about caliber, bullet weight, bullet diameter, or barrel length, so I left these as they were in the previous run.

Cartridge          : 9 mm Luger (SAAMI)
Bullet             : .358, 125, LEE 358-125-RF
Useable Case Capaci: 7.549 grain H2O = 0.490 cm³
Cartridge O.A.L. L6: 1.095 inch = 27.81 mm
Barrel Length      : 4.6 inch = 116.8 mm
Powder             : Alliant POWER PISTOL

Predicted data by increasing and decreasing the given charge,
incremented in steps of 1.887% of nominal charge.
CAUTION: Figures exceed maximum and minimum recommended loads !

Step    Fill. Charge   Vel.  Energy   Pmax   Pmuz  Prop.Burnt B_Time
 %       %    Grains   fps   ft.lbs    psi    psi      %        ms
-09.4   87     4.80    983     268   19297   3558     75.2    0.601
-07.5   89     4.90   1002     279   20280   3671     76.2    0.587
-05.7   91     5.00   1022     290   21305   3784     77.2    0.573
-03.8   92     5.10   1042     302   22372   3898     78.2    0.560
-01.9   94     5.20   1062     313   23485   4011     79.2    0.547
+00.0   96     5.30   1082     325   24643   4124     80.1    0.535
+01.9   98     5.40   1102     337   25850   4237     81.1    0.524
+03.8  100     5.50   1122     349   27108   4350     82.0    0.512
+05.7  101     5.60   1142     362   28418   4462     82.9    0.501
+07.5  103     5.70   1162     375   29783   4573     83.7    0.491  ! Near Maximum !

Thank you! For crunching the numbers!

That's really interesting to readout a simulation of the internal ballistics.

When I did the load work up I stopped at 5.5 grains, thats where the groups just barely started to open up at 30-50 yards offhand.

The best accuracy and soft shooting, in my hand, loads I enjoyed shooting, was at 5.1, so that's the loading I like to replicate.

The bullet weighs 124 grains and the casings are matched headstamp federal fc 9x19, barrel 4.5 inches.

It looks similar to the lyman devastator bullet.

I enjoy casting loading and shooting this bullet.


I can't wait for this heat wave to quit, been too hot to cast for weeks.



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[P Flados]

Thank you! For crunching the numbers! ....

I can't wait for this heat wave to quit, been too hot to cast for weeks.

No problem running the numbers.

I have been picking the "milder" days and casting anyway. I did a around 3000 between a batch of 7mm 130s and a batch of small 30 cal plinkers in two different casting sessions in the last week.