Keyholing: 9mm lead 147gr. rcbs flat nose/flat base

2373 Views 17 Replies 6 Participants Last post by Duhbob, Feb 28, 2011

Duhbob

Discussion Starter · Feb 22, 2011

Keyholing: 9mm lead 147gr. rcbs flat nose/flat base

My flat nose RCBS ww 147gr.bullets look great and fly like a tipped pass from a bad thrower. I had temporarily lost my source for the functional/useable 136gr rnl bullets I am using now. So I had to do something...I ordered the $67 mold and cranked out 1,000 lead bullets...They suck!
I got my 136gr. source back so I can gladly say I am ok again BUT STUCK with a mold that I can't use.
The problem is KEYHOLING even at 20'. I tried N-340' N-350 and aa#7 also .356, and.355...nothing helps not lighter/heavier crimp or long or short OAL. I am loading pretty light stuff, like 133 power factor. Who wants to chime-in, anybody who loads lead 9mm from wheel weights ??

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SubGunFan

· #3 · Feb 23, 2011

Re: Keyholing: 9mm lead 147gr. rcbs flat nose/flat base

Two things to look at...............

1. Are the bullets undersized? .355" or .354"

2. Some makes of barrel just don't shoot lead bullets worth a toot....

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