9mm Diameter

[Pete P]

I'm just curious as to the diameter that everyone is sizing their 9 mm boolits to.

[Ben]

That roughly equates to asking 100 people what size shoes they wear.

I size to 3575" for my S&W Mod. 59.
Works great.

Ben

[farmerjim]

.357 works fine in all of my 9mm's.
I both powder coat and Hi-Tek.

[country gent]

I buy .358 dia for my Berretta 92. This dia shoots best in my pistol

[toallmy]

Same here just shy of .358 .

[tazman]

I run .357-.358 in my Beretta barrels. In all the others, I run .356-.357.
A lot depends on slugged barrel size and what your chamber will accept.

[Grmps]

Pete, you really need to slug the barrel. I have 9MM that range from .355 to .358.

Barrel fishing weight work great

[DocSavage]

.357-.358

[dragon813gt]

If I was going to load differently for each one they would range from .3555 to .359. But I’m able to get away w/ .358 for all but one. A Walther PPS requires .3555. And that’s not a typo incase you thought it was. It’s the only 9mm I own that has an actual .355 bore.

[BHuij]

.358" for my M&P 1st gen. I was getting leading any smaller than that.

[Ed_Shot]

.358 works for all 9's (CZ 75B, BHP, Sig P320, Glocks w/LW barrels) that I load for.

[wv109323]

I size to .358 for my CZ75.

[Moonie]

This comes up every few months, the forum does have a great search feature. I size to .357 for all my 9mm's.

[Walks]

I have a WALTHER P-4 with a .355 bore. And my Commercial P-08 has a .3555 bore.

I used to own a S&W Model 59 that had a .354 bore. Shot cast at .355, if I used .356 it would lead and throw a nice shotgun pattern. I dumped it. Bought a 1950's Hi-Power. It's bore is .356, so I still have to stock three different bullet diameter's and three different loads.

Most of my other nine's fit between the two, or either a .357 dia. for a wartime P-38. PITA

[Tom W.]

My Glocks when I had some and my Ruger will shoot .358 all day long, but my CZ 75 SP01 likes .357.

[kevin c]

.357 for my factory barreled G34's.

[ioon44]

I size to .357" for my Walther PPQ's and RRA 9mm PCC.

[beagle]

I normally start out at .3575" here. But, I'll bet if you pull a bullet, it's been swaged down some by seating. Probably to around .356" from my experiences./beagle

[bbogue1]

I slugged my barrel and sent the slug to Dardas Bullets who miked it for free. Turned out my 9mm was actually .356 so mine are sized to .356 then powder coated and resized to .357. If I lube them then I size to .357 which is what Dardas recommended.

[PJEagle]

Mine are .357.

[Outpost75]

Shoot the largest bullet which will chamber in your gun. CIP and NATO chambers are larger. SAAMI is tighter.

Usually .358 in CIP and NATO barrels, .356-.357 in SAAMI.

[JonB_in_Glencoe]

Mine are .357.

me too

[Petrol & Powder]

My 9mm pistols are all over the map in terms of barrel diameter. My advice follows Outpost75's - pick the largest that will chamber. For my Beretta 92 that works out to .358".

[Jniedbalski]

My 9 molds I use as cast. They come out around .357 to .358.i only have three nines but .358 fits in my Bretta and star. My high point will shoot .358 bullets but hangs up some times .357 works better.

[mdi]

My guns get from .356" to .358"+ (often just under .359"), depending on what the barrel slugs out to...

[Valley-Shooter]

After you choose what size bullets you want to use, size some bullets and measure them.
I have a sizing die that is marked .357", but actually sizes the bullets to .356". I had leading in my barrel and didn't know why until I actually measured my bullets. Went to .358" and everything works good now.

[hermans]

Had a custom expander plug made since the Dillon one that came with my dies/press is for FMJ boolits. This caused my cast boolits to be swaged smaller than sized.
With the custom plug, which is 2 thou bigger than the factory one, I can now shoot my cast boolits which is sized to .3575, and the barrel remains shiny, no traces of any leading, accuracy is great too.

[Geezer in NH]

.358 for all my 9mm's Don't get leading in any.

[marlin39a]

Well, I'm running 6 Rugers, and 2 S&W pistols. All at .357. Works for me.