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.

https://uploads.tapatalk-cdn.com/20210728/814b6edc3c220670f9f93e96db153002.jpghttps://uploads.tapatalk-cdn.com/20210728/74baa5c8fac0f78688b067edbb19887e.jpg

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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.