9mm OAL and pressure ???

Kingzero

Kingzero

New member
I have never reloaded pistol cartridges before and have a couple questions.

Made a couple dummy rounds to test in my pistol. Bullets are Berry's plated 124gn. HBFP. I seated them to 1.120" based on my Speer manual. They were too long and jammed into the lands. I kept seating deeper until they chambered easily and ended up with 1.085".

My Lyman manual doesn't list a 124gn bullet but the OAL listed for a 125gn. HP is 1.075"

Berry's website says the hollow base bullets are longer than a regular flat base bullet. The length of the bullets are 0.556". I am worried that the longer bullet being seated deeper will result in higher pressures.

Sooooo...is an OAL of 1.085" ok, and will the pressures be affected that much?

I will be using Titegroup. Speer says 4.0 for a starting point on the 124gn flat points. Gun is a Glock 33 with a 9mm conversion barrel.

 
Originally Posted By: KingzeroI have never reloaded pistol cartridges before and have a couple questions.

Made a couple dummy rounds to test in my pistol. Bullets are Berry's plated 124gn. HBFP. I seated them to 1.120" based on my Speer manual. They were too long and jammed into the lands. I kept seating deeper until they chambered easily and ended up with 1.085".

My Lyman manual doesn't list a 124gn bullet but the OAL listed for a 125gn. HP is 1.075"

Berry's website says the hollow base bullets are longer than a regular flat base bullet. The length of the bullets are 0.556". I am worried that the longer bullet being seated deeper will result in higher pressures.

Sooooo...is an OAL of 1.085" ok, and will the pressures be affected that much?

I will be using Titegroup. Speer says 4.0 for a starting point on the 124gn flat points. Gun is a Glock 33 with a 9mm conversion barrel.




You will be fine.

They are longer on the outside, but shorter on the inside
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Always start low and work up your loads. If you do that, you will stay out of trouble.


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I figured it was cause of the outside profile of the bullet. They are not tapered as much as a round nose bullet.

Berry's website says not to load past the half way mark when using data for jacketed bullets. I will start low and work up as always.

Thanks for the help.
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