Holy $%!7 – OATH 12 Gauge TSR Slug

    Sometimes there is no replacement for the immediate exclaiming of an expletive. Most of the time I let one fly its due to someone or something’s rampant stupidity, but on the flip side there are things that are so awesome to behold that no other set of vowels and consonants can do it justice.

    A rare entry to the latter category is the OATH ammunition TSR (Tango Shotgun Round) slug, which upon expansion clocks in at a whopping 2.6″+! The 12 gauge round follows similar expansion technologies in their Tango series, which we tested just a bit ago (but found the high expansion detrimental to the handgun round). If that applies in the 12 gauge with significantly more energy, it remains to be seen but in some manufacturer gel testing, it went a full 12″.

    The all-copper slug is an unusual shape (called wasp-waisted by our sister-site’s Oleg Volk) coming in at an impressive 602 grains (a bit over 1.3 ounces). The projectile is 100% machined with o-rings at the front and rear for keeping the petals in during flight and getting a good boost from the aluminum(!) shell.


    Yes… I did say aluminum… The hull is machined from billet and according to OATH, its easier to extract than traditional plasitc hulls. On the practical side, the stronger hull will keep its shape even when loaded into a magazine-fed shotgun. Ovoid hulls deform easily over time (Especially adding in some heat like in a car trunk) which will cause semi-autos to malfunction.

    Check out additional details from our sister site, AllOutdoor.com. The TSR is also available for pre-order. Retail clocks in at $34.95 for 5 rounds, which I consider “not bad” if the performance is there.

    Nathan S

    One of TFB’s resident Jarheads, Nathan now works within the firearms industry. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, NFA, gunsmithing, MSR’s, & high-speed gear. Nathan has traveled to over 30 countries working with US DoD & foreign MoDs.

    The above post is my opinion and does not reflect the views of any company or organization.