You are Unregistered, please register to use all of the features of!    

Firearm & Gun Forum - > Gear & Accessories > Ammunition & Reloading >

Blowback gas

LinkBack Thread Tools Display Modes
Old 11-17-2008, 12:41 AM   #1
Feedback Score: 0 reviews
Darth AkSarBen's Avatar
Join Date: Aug 2008
Location: Fennville,MI
Posts: 113
Liked 19 Times on 15 Posts
Likes Given: 69

Default Blowback gas

I'm reloading for my Taurus 24/7 Pro pistol in .45 ACP. I have come up with a fairly nice load of 4.7 gr of Titegroup with a 185gr Ranier all copper plated bullet. However, there is some blow by gas showing on the cartridge after ejection. Am I not loading for enough pressure? Could this gas blowby be caused by the case not expanding enough to create a tight seal on the chamber?

Vern Personal Taurus Pistol site with info and pictures and links.
Taurus Millennium PRO in .45 ACP, Bersa Thunder 380, SIG Sauer SP2022 in 9mm

Former Certified Law Enforcement Officer, Nebraska

Occam's Razor "The simplest explanation is usually
the best"
Darth AkSarBen is offline  
Reply With Quote

Join Today - It's Free!

Are you a firearms enthusiast? Then we hope you will join the community. You will gain access to post, create threads, private message, upload images, join groups and more.

Firearms Talk is owned and operated by fellow firearms enthusiasts. We strive to offer a non-commercial community to learn and share information.

Join Today! - Click Here

Old 11-17-2008, 02:03 PM   #2
Feedback Score: 0 reviews
BillM's Avatar
Join Date: Dec 2007
Location: Amity
Posts: 1,142
Liked 292 Times on 168 Posts
Likes Given: 14


4.7 with a 185 is a pretty light load. You are probably not expanding
the case enough to get a tight seal in the chamber. I wouldn't worry
about it very much, with Titegroup all you will get is a little soot which
should cause no damage.

FWIW, 4.1-4.2 with a 230 gr, or around 5.0 with a 200 gr are what I load
to (just) make major power factor for Practical Pistol competition. Still
a lot lighter than factory ammo.
BillM is offline  
Reply With Quote

Thread Tools
Display Modes