357 sig bullet size

Roybean · July 14, 2002, 09:45 PM

Reloading data seems to suggest one can use either .357 dia. (Speer Gold Dot) bullets for the 357 sig while other indicate that .355 bullets should be used. Any thoughts

sricciardelli · July 14, 2002, 09:52 PM

I have used .357 bullets with no misadventures...

SDBettas · July 15, 2002, 08:55 AM

The only thing 357Sig and .357 Magnum have in common is the name. The 357 sig bullets are .355 in diameter just like 9mm. I would caution against it as you are now adding an unknown factor in raising pressures.

Significent · July 15, 2002, 06:17 PM

I'm getting ready to reload 357SIG. Everything I've read, without exception, says .355. Bullet type is also very important due to the limited bearing space. If the crimp isn't just right, bullet set back can be a big problem. Check out Pete Jordan's web site here:

Pete's Web Site

vetts1911 · July 18, 2002, 05:00 PM

When you load for it make sure the bullets can go around 1100 or better fps. I almost used some Berry's for mine and noticed that at the last min. The 9mm bullets don't go much above that while the 357 sig and mag does and the bullets for that are made for the FPS and they are a hair bigger.

Significent · July 18, 2002, 06:45 PM

Here's a quote regarding 357SIG from page 504 of the Speer Reloading Manual # 13:

"In spite of its name, this cartridge uses .355" bullets - the same as the 9mm Luger. LARGER .357" BULLETS INTENDED FOR THE 38 SPECIAL AND 357 MAGNUM MUST NOT BE USED."

Note that the second sentence is in all capital letter.

caz223 · July 18, 2002, 07:47 PM

The use of 9mm bullets for reloading is great.
Think of all the bullet styles that are available...

July 14, 2002, 09:45 PM	#1
Roybean Senior Member Join Date: June 9, 2000 Posts: 164	357 sig bullet size Reloading data seems to suggest one can use either .357 dia. (Speer Gold Dot) bullets for the 357 sig while other indicate that .355 bullets should be used. Any thoughts

July 14, 2002, 09:52 PM	#2
sricciardelli Senior Member Join Date: August 13, 2001 Location: Montana Posts: 489	I have used .357 bullets with no misadventures... __________________ http://stevespages.com/page8.htm

July 15, 2002, 08:55 AM	#3
SDBettas Junior Member Join Date: April 19, 2002 Location: Miami Posts: 10	.357 Sig The only thing 357Sig and .357 Magnum have in common is the name. The 357 sig bullets are .355 in diameter just like 9mm. I would caution against it as you are now adding an unknown factor in raising pressures.

July 18, 2002, 05:00 PM	#5
vetts1911 Member Join Date: March 26, 2002 Location: MARYLAND Posts: 65	A thought When you load for it make sure the bullets can go around 1100 or better fps. I almost used some Berry's for mine and noticed that at the last min. The 9mm bullets don't go much above that while the 357 sig and mag does and the bullets for that are made for the FPS and they are a hair bigger.

July 15, 2002, 06:17 PM	#4
Significent Junior Member Join Date: June 12, 2002 Location: Fairfax, Virginia Posts: 14	I'm getting ready to reload 357SIG. Everything I've read, without exception, says .355. Bullet type is also very important due to the limited bearing space. If the crimp isn't just right, bullet set back can be a big problem. Check out Pete Jordan's web site here: Pete's Web Site

July 18, 2002, 06:45 PM	#6
Significent Junior Member Join Date: June 12, 2002 Location: Fairfax, Virginia Posts: 14	Here's a quote regarding 357SIG from page 504 of the Speer Reloading Manual # 13: "In spite of its name, this cartridge uses .355" bullets - the same as the 9mm Luger. LARGER .357" BULLETS INTENDED FOR THE 38 SPECIAL AND 357 MAGNUM MUST NOT BE USED." Note that the second sentence is in all capital letter.

July 18, 2002, 07:47 PM	#7
caz223 Senior Member Join Date: May 15, 2002 Location: Michigan Posts: 1,429	The use of 9mm bullets for reloading is great. Think of all the bullet styles that are available...