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View Full Version : .25 ACP Accuracy Issues with a Baby Browning


Hanzy4200
10-07-2018, 09:37 PM
I've been playing round with mouse guns for a month or so and have added 5 new toys to the safe. 3 of which are .25's. I'm loading RCBS 50 gr pills sized to .251 in a lubrisizer. Firstly, I am admittedly not the engineer type caster. I've never been to technical, and yes, I've never even slugged a bore. That said, I cast and shoot 10-12 calibers with almost no issues. Enter the Baby Browning. This little guy is slinging lead everywhere, even a few keyholes. My Mauser 1910 shoots the same loads like a laser. The Browning is in great overall condition with a near perfect bore. I even went so far as to break taboo and buy a box of factory ammo, and they shot with excellent accuracy. I would love some insight.
Outpost75
10-07-2018, 09:58 PM
Your .251 diameter lead bullets are too small.
gnostic
10-07-2018, 11:06 PM
When your bullets keyhole, they're too small.
Hanzy4200
10-12-2018, 06:36 PM
Every .25 acp bullet mold (and there are few) advertises a drop diameter of .251. Is there a answer to casting a .252 bullet? I had to wait 4 months for RCBS to do it's limited run just to get the one mold I have.
Poygan
10-12-2018, 07:15 PM
I think the Ranch Dog mold is slightly heavier and larger in diameter. He isn't in business anymore I don't believe but you may be able to snag one on ebay. I did some time ago.
waksupi
10-12-2018, 08:54 PM
Search "Beagleing". I think that is spelled right. Tells you how to make your mold cast larger.
ShooterAZ
10-12-2018, 09:16 PM
Here is the link to "Beagling" a mold.http://www.castpics.net/subsite2/MoldMods/BDE.pdf It does work.
Outpost75
10-12-2018, 09:38 PM
Every .25 acp bullet mold (and there are few) advertises a drop diameter of .251. Is there a answer to casting a .252 bullet? I had to wait 4 months for RCBS to do it's limited run just to get the one mold I have.

Try casting your mold with straight linotype and they will drop about 0.0015" larger than straight wheelweights. Then use Lee Liquid Alox and load as-cast and unsized.
sigep1764
10-12-2018, 10:23 PM
I believe NOE picked up some of the RanchDog designs. Give them a looksee. They will also cut a mold to the diameter you want with your ally factored in.