458 SOCOM: “Make Sure The Round Peg Fits The Round Hole”

Posted by Buddy Singleton on 11/26/2019 to 458 SOCOM

458 SOCOM:  “Make Sure The Round Peg Fits The Round Hole”

The 458 SOCOM experienced a massive surge of popularity over the past decade.  This surge meant that A LOT of folks jumped into the market looking to make a quick dollar.  While this is good for the cartridge, it created some problems.

In recent years, we have received numerous phone calls and emails from folks asking us why their 458 SOCOM wouldn’t chamber.  In working through these problems, the most common root cause has been guns with chambers that are cut to incorrect tolerances, as well as 458 SOCOM ammunition that do not meet correct specifications. 

The 458 SOCOM is a different beast as compared to the 223 Rem / 5.56.  It has a large case area which makes the cartridge more sensitive to incorrect tolerances and less forgiving to loading errors.  Building an AR15 and loading the ammo can be finicky.   The errors generally cannot be seen with your naked-eye, nor identified by measuring the cartridge with calipers. Out of specification ammunition cannot be checked using you’re AR15 rifle, the barrel extension blocks the view of the chamber so “bad” ammo is not identified until you try and chamber a rd, the bolt locks closed or it will not chamber at all.

 In all of our years producing 458 SOCOM ammunition and firearms, we’ve learned a couple things.  Mainly, that the “round peg needs to fit the round hole.” 

The 458 SOCOM Ammo & Case gauge will allow you to know instantly if cases have been resized correctly or if loaded ammunition will fit into the chamber of a properly chambered 458 SOCOM. It is to the original Teppo Just specifications and design.

Or you can just “push the easy button” and order ammunition from SBR.  We have the widest variety of 458 SOCOM ammunition on the market ranging from Sub-Sonic heavy weights, to Top Shelf hunting loads like the Barnes 300 grain TTSX to our LaserMatch tracer ammunition.  And each and every round we sell has already been gauged in a gauge exactly like you see above.


The 458 SOCOM Cartridge

Posted by Buddy Singleton on 11/8/2019 to 458 SOCOM

The 458 SOCOM Story

Federal Law Enforcement Training Centers (FLETC) award

Posted by SBR Ammunition on 11/8/2019 to News

SBR is awarded a five year, $15 million ammunition contract

Who is SBR?

Posted by Buddy Singleton on 10/31/2019 to News

Southern Ballistic Research, aka SBR, founder and owner Buddy Singleton is a retired US Army Officer and Georgia native.  Buddy has over 40 years experience in the shooting industry and as a competitive shooter.  He created SBR to support law enforcement and military customers by offering ammunition that has been designed and ballistically tested to meet their specific mission requirements.  SBR performs extensive research, development and testing on all cartridges they manufacture, from their tactical line of ammunition to their hunting and match calibers.


One of the most noteworthy achievements came early in the history of the company.  It was the development of the 458 SOCOM cartridge in conjunction with Marty TerWeeme of  Teppo Jutsu.  While Marty contacted Tony Rumore at Tromix to make the first rifles in 458 SOCOM,  he got in touch with Buddy to further develop the cartridge and offer "factory" loaded 458 SOCOM ammunition.    The 458 SOCOM is arguably the most successful non-SAAMI standardized cartridge in recent history.  The same innovative spirit that helped create the 458 SOCOM has remained at the core of all SBR product development from LaserMatch® short and long range tracer ammo, frangible lead-free ammunition to a variety of precision tactical rifle and hunting ammunition.


Buddy’s experience in the military has influenced the product line heavily.  Having extensive real world experience with everything from small arms to tanks and heavy artillery has provided perspective that most do not possess.  That experience also led to a very different perspective on testing that is unique within the firearms industry.  This perspective creates ammunition that is geared for heavy lifting and the differences are in the details.  SBR ammunition is engineered to be reliable no matter what the circumstances.


While best known for ammunition, SBR also produces very high quality weapon systems that range from AR15 style platforms to precision bolt action rifles, all of the aforementioned  chambered for SOCOM and Spectre family of cartridges, which SBR has pioneered.  In addition to very high quality firearms, SBR also produces a line of very simple yet precise and effective suppressors that are tailored for the same cartridges. 


Another aspect of SBR that is not as well known as others is the Research & Development services that range from testing customer hand loads for pressure and velocity to full on weapons system development for a variety of clients from the private sector to countries around the world who need specialized and specific solutions.


Production of reliable, precision ammunition will remain the core of business for Southern Ballistic Research, but there is growing interest in specialized weapons systems and other specialty ammunition across the world.  These things, combined with the ability to test and analyze ammunition for a variety of customers, mean that the future for SBR is both bright and diversified.

We plan to add helpful blog articles that specifically cover the SOCOM and SPECTRE family of cartridges.  They include the 458 SOCOM, 375 SOCOM, 338 SPECTRE, and the newest member of the family, the 240 SPECTRE and 6.5 SPECTRE MAGNUM.