.355 and .356 9mm?

XD-M 9MM · March 29, 2009, 06:37 PM

Guys and Girls,

Im new to handgun shooting and reloading.
I looking at reloading and I see some 9mm bullets state .355 size and lead cast 9mm bullets state .356 size. will both of these sizes fit 9mm brass?

goodspeed(TPF) · March 29, 2009, 06:40 PM

Yes, that is the norm...... Carry on.

**Unclenick** · March 29, 2009, 06:59 PM

The lead bullets are made slightly oversize because sealing the bore is more critical with them and they are soft enough to form to size in the barrel when fired. Some guns even like them 0.002" over standard bullet diameter (.357').

XD-M 9MM · March 29, 2009, 08:07 PM

Ok thanks for the info. I was noticing the lead cast were cheaper.

NuJudge · March 29, 2009, 09:28 PM

I've seen .357" and some friends say they have .358" groove diameter. If you are having unexplained Leading using .356" bullets, slug your bore, especially at the breech end and you might get a surprise.

A Lead bullet under groove diameter will usually cause lots of Leading.

CDD

harry carey · April 25, 2009, 08:40 PM

355 cast are terrible in glocks. you need 356. NO I do not own a Glock ! 356 has worked best in every gun i have loaded for, including revolvers. S&W 547.

March 29, 2009, 06:37 PM	#1
XD-M 9MM Junior Member Join Date: March 29, 2009 Posts: 3	.355 and .356 9mm? Guys and Girls, Im new to handgun shooting and reloading. I looking at reloading and I see some 9mm bullets state .355 size and lead cast 9mm bullets state .356 size. will both of these sizes fit 9mm brass?

March 29, 2009, 06:40 PM	#2
goodspeed(TPF) Senior Member Join Date: January 19, 2009 Location: WI Posts: 1,162	Yes, that is the norm...... Carry on. __________________ It's a trick. Get an axe. http://www.thepiratefleet.com/index.shtml

March 29, 2009, 06:59 PM	#3
Unclenick Staff Join Date: March 4, 2005 Location: Ohio Posts: 21,063	The lead bullets are made slightly oversize because sealing the bore is more critical with them and they are soft enough to form to size in the barrel when fired. Some guns even like them 0.002" over standard bullet diameter (.357'). __________________ Gunsite Orange Hat Family Member CMP Certified GSM Master Instructor NRA Certified Rifle Instructor NRA Benefactor Member and Golden Eagle

March 29, 2009, 09:28 PM	#5
NuJudge Member Join Date: October 17, 2005 Location: SE Michigan Posts: 86	Some 9mm barrels have oversize groove diameters I've seen .357" and some friends say they have .358" groove diameter. If you are having unexplained Leading using .356" bullets, slug your bore, especially at the breech end and you might get a surprise. A Lead bullet under groove diameter will usually cause lots of Leading. CDD

March 29, 2009, 08:07 PM	#4
XD-M 9MM Junior Member Join Date: March 29, 2009 Posts: 3	Ok thanks for the info. I was noticing the lead cast were cheaper.

April 25, 2009, 08:40 PM	#6
harry carey Member Join Date: April 25, 2009 Location: georgia Posts: 67	355 cast are terrible in glocks. you need 356. NO I do not own a Glock ! 356 has worked best in every gun i have loaded for, including revolvers. S&W 547.