Need help with reloading 9mm

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Brno6

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Hi all,
I started reloading for the 9 mm about 1 year I ran in to a problem. I'm shoot a tanfoglio stock 3.
I'm using 6 grs of h-6 with a 124 gr rn. When I'm finish shooting and I have some rounds left in the mag.
When I'm empty the mag and one round in the chamber. The brass eject empty and the bullet is in the chamber. I do crimp the bullet. Do I need to crimp more? And if so how much more without creating more pressure. Oh by the way when I use the same receipt in my glock I don't have this problem.
Can anyone help thanks
 
probably loading too long for the chamber and the bullet is being jammed into the lands. when you rack it to eject it the crimp isnt enough to hold it together
 
I use a factory crimp die on both 45ACP and 45 Colt, if you look at a reloaded round from the side you should see the crimp as a rounding of the end of the case into the bullet. If you can't see it clearly it needs more crimp.
The fired cases show no traces of the crimp and in all the thousands of rounds I have reloaded I have only had two 45 Colt cases crack at the mouth of the case.
 
i would also suggest that your OAL is to long and the bullet is jammed into the rifling. it might also be a lack of crimp, or both issues combined, post a picture of some loaded rounds.
 
You already have a case gauge - the barrel.

Take a factory round and drop it in the chamber and see where the base is in relation to the end of the barrel, then drop one of the reloads in, is it in the same place?

Also the OAL can be dictated by the magazine.
 
RePete said:
You already have a case gauge - the barrel.

Take a factory round and drop it in the chamber and see where the base is in relation to the end of the barrel, then drop one of the reloads in, is it in the same place?

Also the OAL can be dictated by the magazine.
Click to expand...

Ya beat me to it. Some barrels have more leade than others. The plunk test pointed out by RePete will tell you if your reloads OAL is too long.

If you are seeing noticeable rounding of the case mouth, you might be crimping way too much. A 9mm chambers on the case mouth, hence the reason why you don't really want a lot of crimp. You just need to crimp off the flare from expanding. Measure the case mouth of your sized brass with a caliper, run it through your seater/crimper die and then measure the case mouth again. It should be 0.002" smaller. You're good to go after that.
 
I'm using the measurement from Winchester ammo bought from the store. Same OAL and the rounds that I make comes apart last live round. When I use bought rounds I don't have this problem. I will try all your suggestion thanks a lot guys for you input. I will try going to the range to shoot as per your information and will give you up date.thanks
 
You need to Load differently for the 2 guns

Sounds like the tanfoglio is short chambered (Common for eurpean guns ) you need to shorten the length till the bullet does not touch/ engage the lands
making the round shorter will change chamber pressure------> so you have to reduce and work up again

Have you done the plonk test ?????

Brno6 said:
Hi all,
I started reloading for the 9 mm about 1 year I ran in to a problem. I'm shoot a tanfoglio stock 3.
I'm using 6 grs of h-6 with a 124 gr rn. When I'm finish shooting and I have some rounds left in the mag.
When I'm empty the mag and one round in the chamber. The brass eject empty and the bullet is in the chamber. I do crimp the bullet. Do I need to crimp more? And if so how much more without creating more pressure. Oh by the way when I use the same receipt in my glock I don't have this problem.
Can anyone help thanks
Click to expand...
 
just having some fun said:
You need to Load differently for the 2 guns

Sounds like the tanfoglio is short chambered (Common for eurpean guns ) you need to shorten the length till the bullet does not touch/ engage the lands
making the round shorter will change chamber pressure------> so you have to reduce and work up again

Have you done the plonk test ?????
Click to expand...


Sorry what is the plonk test not sure what that is !
I'm going to try different bullet and powder, seat the bullet deeper
The thing that I don't understand is that I use the same OAL from a factory bullet it works well in that gun but my reloads are not.
That why I find it strange.may be it the crimp. But how much of a crimp is needed without creating to much pressure.
Thanks again guy for your help.
 
First, use a taper crimp on 9mm, not a roll crimp. Taper crimp until the case walls are straight, not any more. Check a factory crimp against a pair of calipers to get a visual impression of what a good crimp looks like, and also, measure a factory crimp with a micrometer to see exactly what factory ammo looks like. A good manual should also tell you how much crimp, but I'm not sensing you are using one.
 
Brno6 said:
Sorry what is the plonk test not sure what that is !
I'm going to try different bullet and powder, seat the bullet deeper
The thing that I don't understand is that I use the same OAL from a factory bullet it works well in that gun but my reloads are not.
That why I find it strange.may be it the crimp. But how much of a crimp is needed without creating to much pressure.
Thanks again guy for your help.
Click to expand...

Plunk test: Remove barrel from pistol. Drop your reloaded round into it. Does it seat perfectly in the barrel? Invert the barrel, does the round fall out easily or do you have to tap it out?

I've already mentioned how much crimp you needed in my earlier post. Do you not own a set of calipers?
 
I have Stock II and I use the same load as I use for my CZ Shadows. OAL 1.105+.005, mild taper crimp using Dillon 550.
 
Your ammo is long. Check the case lengths and load the 124's to 1.150". More crimp won't matter if the loaded cartridge is too long.
You need to work up the load too. 6.0 is the starting load. S'ok, but it likely isn't the most accurate load for your pistol.
 
Trinimon said:
Plunk test: Remove barrel from pistol. Drop your reloaded round into it. Does it seat perfectly in the barrel? Invert the barrel, does the round fall out easily or do you have to tap it out?

I've already mentioned how much crimp you needed in my earlier post. Do you not own a set of calipers?
Click to expand...
Yes I did the plunk test it falls out nicely
 
ykkid said:
First, use a taper crimp on 9mm, not a roll crimp. Taper crimp until the case walls are straight, not any more. Check a factory crimp against a pair of calipers to get a visual impression of what a good crimp looks like, and also, measure a factory crimp with a micrometer to see exactly what factory ammo looks like. A good manual should also tell you how much crimp, but I'm not sensing you are using one.
Click to expand...

I'm using a lee factory crimp die, I will try the way you mention,will let you know thank
 
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