downside to .357 in 9mm

[jpm2953]

Any downsides to running .357" bullets in 9mm? My bore measures .355-.3555"

I have had a dang time with leading the past two batches of bullets I have gotten. Both are known to be very soft though(Sized .356")
I wonder if .357 would alleviate any issues.
My question is......what are the downsides to running a .357" bullet in 9mm? Coated lead only....not talking about plated or jacketed

 

[Nuke And Juke]

have you thought to shoot a good handful of FMJ's to clear out the leading?

 

[jpm2953]

have you thought to shoot a good handful of FMJ's to clear out the leading?

That's actually one of the worst things you can do. It pushes the leaded harder into the rifling.
I use chore boy wrapped on a brass brush to get rid of the lead. takes about 30 seconds.

 

[spencer60]

Interesting... that's always what I heard you were supposed to do...

 

[jpm2953]

Interesting... that's always what I heard you were supposed to do...

Me too. I shot 300 rounds for practice last tuesday. Took my barrel out and saw that it was leaded up. Not completely smooth bore but pretty bad. I fired 50 147gr FMJ after that to test out that theory. Zero change in the amount of lead in a barrel and it was twice as hard to scrub it out when I got home.

 

[Jackie Graham]

Any downsides to running .357" bullets in 9mm? My bore measures .355-.3555"

I have had a dang time with leading the past two batches of bullets I have gotten. Both are known to be very soft though(Sized .356")
I wonder if .357 would alleviate any issues.
My question is......what are the downsides to running a .357" bullet in 9mm? Coated lead only....not talking about plated or jacketed

Other that possible cambering issues and the fact that the pressures will be a lot higher I can't think of anything else off hand.

 

[jpm2953]

I ordered 7,000 125's from Black Bullets International at .356" Going to give the .356" one more try. These bullets seem to have zero issues with my buddies that shoot them.

 

[Jackie Graham]

.356 coated bullets work fine. I know several guys who use the Bayou and Blue bullets for competition and they love them. Not that familiar with BBI bullets. I am old school and still prefer the jacketed on plated bullets.

 

[jpm2953]

.356 coated bullets work fine. I know several guys who use the Bayou and Blue bullets for competition and they love them. Not that familiar with BBI bullets. I am old school and still prefer the jacketed on plated bullets.

I prefer plated or jacketed as well but I can't afford to shoot as much as I do unless i shoot coated lead

 

[Jackie Graham]

Just look for the deals. Delta Precision has 115gr FMJ usually at $84 per K, minimum order of 2k, delivered to your door. I find that some of the coated are running around $65 per k or more. I have been using Delta Precision bullets for years. No Problems. They will occasionally run a sale on them for $79 per K. 124gr run a little more.