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View Full Version : Lee 356-125 2r seating depth



John McCorkle
09-22-2020, 02:09 PM
Quick question for you 9mm loaders

I have an ar 9 barrel that is strictly saami spec chamber, which does not give me alot of throat to seat bullets out longer (I typically like to give that tiny 9mm case capacity some room to breathe)

Had some Lee 356-125 2r powder coated and sized but having to seat them very short to plunk. I'm getting a 1.050 coal before I'm passing the test. Anything much longer at all gets sticky when trying to extract a test loaded round (telling me the boolit is touching rifling)

Anyone else have this experience...Lee manual says go no more than 1.125 coal min....I'm 75 thou shorter just to get function...so my concern is load.

I'm hoping for a light charge of titegroup (3.2 ish) anyone have red flags or suggestions? Are there similar bullets that seat this deep and what loading should I look to for start charge?

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TjB101
09-22-2020, 06:19 PM
I’m at 1.075 to 1.080 to chamber in my Sig’s. I’ve read others as short as .045. I was at .050 for my CZ75. I think I was at 3.6gr of BE for the .075 round.

Misery-Whip
09-22-2020, 07:19 PM
I had a similar issue in 45auto. Try switching to the LEE tumble lube version, or the arsenal 359-130-rf. These designes the nose steps down in diameter, allowing a longer COL.

I suggest posting in the boolit swap area for a small sampling.