Looks like I got Over pressure with lower mid range load.

[tdogg]

It looks like you are way over crimping in that last photo.  You can see the deformation in the jacketed bullet.  You shouldn't see any diameter change in the bullet when crimped.  As mentioned before the crimp die is there to remove the flare on the case mouth only.  It does nothing else.

Post crimp, the case mouth should be ~0.377-.378 inch.

Cheers,
Toby

[Davehb]

It looks like you are way over crimping in that last photo.  You can see the deformation in the jacketed bullet.  You shouldn't see any diameter change in the bullet when crimped.  As mentioned before the crimp die is there to remove the flare on the case mouth only.  It does nothing else.

Post crimp, the case mouth should be ~0.377-.378 inch.

Cheers,
Toby

I was just crimping that hard, experimenting, to see if I could get it to hold using the Hornady crimp die.
Nope. 
Seems as long as I have good brass don’t really need to crimp.
Once I started crimping; cause I was getting set back with original cases I had; didn’t dawn on me crimping was causing the issue with the good brass. 
 

[Wobbly]

I was just crimping that hard, experimenting, to see if I could get it to hold using the Hornady crimp die.
Nope. 
Seems as long as I have good brass don’t really need to crimp.
Once I started crimping; cause I was getting set back with original cases I had; didn’t dawn on me crimping was causing the issue with the good brass.

Once again, you could have saved yourself a lot of time and headaches by simply reading our article on Taper Crimp in the Stickies.

https://czfirearms.us/index.php?topic=78873.0

WHAT TAPER CRIMP IS NOT
• Taper crimp does not hold or help retain the bullet in the case mouth.

• More taper crimp does not generally hold the bullet tighter. Typically, more taper crimp simply distorts the cartridge case to the extent that it buckles and actually loosens the grip on the bullet. However, results can also be dependent upon the brand of Crimp Die and brand of brass case.

[noylj]

1 It's called a starting load for a reason. Did you load the exact same bullet in the exact same head- stamp case with the same lot of powder and lot of primers in the same gun? If not, respect the starting load. I have had starting that were max or over max with my components.
2 9x19 is a problematic cartridge. Lots of case manufacturers with lots of variability.
Some cases have walls so thin, they barely get sized. Seating a bullet in these cases will give almost no bullet grip. When you feed a cartridge made from one of these cases, the bullet can be set back in the case. For all 9x19 loading, immediately after bullet seating and prior to crimping, I always try to push the bullet further in the case. If the bullet moves at all, I trash that case.

[painter]

Has anyone considered that despite any setback issues that may, or may not, be occurring that the Sierra data might also be suspect?

On the Hodgdon reloading site there isn't a max load over 3.5 grains of Competition with any 124 gr bullet at any OAL.

[Wobbly]

Great point, Painter !!

[Davehb]

I was just crimping that hard, experimenting, to see if I could get it to hold using the Hornady crimp die.
Nope. 
Seems as long as I have good brass don’t really need to crimp.
Once I started crimping; cause I was getting set back with original cases I had; didn’t dawn on me crimping was causing the issue with the good brass.

Once again, you could have saved yourself a lot of time and headaches by simply reading our article on Taper Crimp in the Stickies.

https://czfirearms.us/index.php?topic=78873.0

WHAT TAPER CRIMP IS NOT
• Taper crimp does not hold or help retain the bullet in the case mouth.

• More taper crimp does not generally hold the bullet tighter. Typically, more taper crimp simply distorts the cartridge case to the extent that it buckles and actually loosens the grip on the bullet. However, results can also be dependent upon the brand of Crimp Die and brand of brass case.

Had to test it. [emoji3]


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