Tumbling Bumbling Bullets [Archive] - Glock Talk

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batson35
11-04-2010, 12:36
At the range yesterday and today with my M&Pc 40sw.

Well I tore the paper up and not in a good way.

I load Berry's 180 & 165gr in front of 231.

Range guy says the Berrys are plated and so that thin plating is being stripped off in the barrel and out tumbles bullet.

Sounds good! Is it true?

IndyGunFreak
11-04-2010, 12:59
I've not had a significant problem w/ Berrys bullets(haven't used them to much though).. but I would think if the plating is peeling, you are pushing the loads to fast...

Are you noticing significant lead/plating fouling in your barrel?

IGF

Bob2223
11-04-2010, 13:24
I've loaded 1000's of Berry's in 357, 40 & 45 any they always worked great.
Pushing too hard, maybe but over crimping would be my 1st guess?

Bob

batson35
11-04-2010, 15:07
do lighter loads reduce the possibility of key holing?

batson35
11-04-2010, 15:09
Never had this issue with my SIG start shooting the M&P and its a whole new ballgame

WiskyT
11-04-2010, 15:23
do lighter loads reduce the possibility of key holing?

IME, with CAST bullets, lighter loads or using a slower powder will stop a bullet from keyholing. As for plated, you'll just have to try. Back the 231 load down maybe 10% or try a slower powder like Unique or Power Pistol, or any of the other similar powders in that burn range.

Load in small batches until you get things sorted out. I wouldn't roll more than 10 of them until you get something that works.

MrVvrroomm
11-04-2010, 15:59
Slow them down, they'll work just fine.

Bogey
11-04-2010, 16:01
What's your crimp?

Should be no less than bullet diameter, plus double brass wall thickness.

Bello
11-05-2010, 04:13
What's your crimp?

Should be no less than bullet diameter, plus double brass wall thickness.


actually its just 20,000th of the neck size