Question on reloading 9mm

[9mmrevolver]

https://www.midwayusa.com/product/1010203064?pid=340779

[slayer61]

CZs have a reputation for being short throated. My wife has one & if I make 9mm for her, I make it short... some as short as 1.080. That way it fits all her guns... well except the 45s...

That's why we test & start low.

[Dooder]

Yea CZ's have short throats, if you want to expand your load possibilities you can have the barrel reamed out. Thats what I'd do. The bullet can be seated as far out or short as you need to as long as you don't go longer than the ogive.

When you seat lower you need to pull the powder charge. There's no set formula for this, you have to develop the load. Use a chrono and read your brass and gun.

If you load for a specific gun then thats self explanatory why it doesnt work for another gun. I have specific ammo loads for specific guns. The idea of reloading is to make the best load for a given gun. Imo I'd throat it so it can take longer ammo. It also opens up the possibility of different bullet shapes and lengths to deal with pressure which also opens up possibilities for using different powders.

[NeilMo]

1- You can reliably load that Lee casting to 1.050" without issue, provided the reloading golden rule is followed.

2- Every chamber throat/leade is different. Even two barrels from the same make of gun can vary considerably depending on their DOM.

3- Very safe.

[tabascoz28]

Just remember the shorter you go, the farther you should stay away from maximum powder and watch for pressure signs.

[bruce381]

Plunk test basically load a few dummys and take barrel off of gun and use a a gauge.

Loaded bullet should be flush with barrel hood. or below slightly if above they are too long and are hitting the "leade".

So shorten till that go in and do not stick I go about 5-10 thosands shorter to make sure.

Do not care what you buddys laod or what book says all you need to know are they OK in YOUR gun of which all vary.

[Gryff]

https://www.midwayusa.com/product/1010203064?pid=340779

Based on the reloading data on the Shooter's World website (https://shootersworldpowder.com/wp-c...rld-manual.pdf - page 23), it says that 124gr. jacketed bullets have a starting load in the 3.2gr area, and a suggested length of 1.1.

Typically, lead bullets call for less powder than jacketed, but you are working at the low end of their suggested powder amount range. So, my guess is that 3.2gr with a 1.1 OAL would be fine for the bullets that you have cast. You could play with that powder quantity a bit, but I probably wouldn't go above 3.8gr to be safe.

It's weird that they have zero data published for 9mm cast bullets though.

[Sandspider500]

Shooters world clean shot is lovex d032

6" barrel 4.4 SP Boxer S&B primer

124gr lead
OAL 1.110
D032(clean shot)
Start 2.9gr. 984fps
Max 3.8gr 1082fps @33,600 psi

[jsanch03]

[bohoki]

3.2 grains should leave plenty of room to seat your bullet deeper

remove your barrel and seat to fit

[9mmrevolver]

[sigguy552]

Have you taken a case gauge to your rounds to confirm it’s not a resizing issue?

[noylj]

First, determine a COL that feeds and chambers in your gun, then, starting at start load, work up the load.
If you change COL, you will need to drop the charge a bit and rework the load. COL is magazine, gun, and bullet specific and there is no single COL guaranteed too work for everything.
My CZs have longer throats than my 1911.