Wolf Ammunition WOLF Performance Ammunition is a registered trademark owned by SSI Manufacturing Technologies , a corporation in the United States . The ammunition is mostly manufactured by Tulskiy Patronniy Zavod ( " Tula Cartridge Plant " ) in Tula , Tula District , Russia . Some . 22 - caliber rimfire ammunition is made by SK Jagd und Sportmunitions Gmbh ( " SK Hunting - and Sporting - Ammunition " ) of Schönebeck , Salzlandkreis , Saxony - Anhalt , Germany . Products . WOLF Performance Ammunition has several product lines which include : Unlike some suppliers of such bargain - price ammo , WOLF uses newly - manufactured rounds with non - corrosive Berdan and Boxer type primers . Russia is the world ' s largest source of 7 . 62x39 mm ammunition , which is used by the Russia n AK - 47 and SKS family of rifles , as well as the Ruger Mini - 30 . Current events . In 2005 / 2006 , there was a shortage of 7 . 62x39mm ammunition in the United States . This had the effect of causing prices to almost double in some cases and WOLF ' s ammo to nearly disappear from the U . S . market in late 2006 - early 2007 . The ammunition shortage was due to Russian production lines struggling to fill a massive order placed by the United States to supply the fledgling Afghan army . Even so , Wolf ' s 7 . 62x39mm is available in standard full - metal - jacket configuration , as well as hollow point and soft point bullet loads suitable for hunting . In 2007 / 2008 , supplies of Wolf steel cased . 308 ammunition became increasingly rare , and major distributors were completely sold out . This , along with diminishing supplies of military surplus 7 . 62x51mm NATO had driven . 308 Winchester prices to an all time high . This shortage is exacerbated by the strain of filling the Afghan Army order . As Wolf catches up with demand , new supplies will become available in the United States . When these new supplies hit the market , it is unknown how much the prices will have increased . In 2010 / 2011 , Wolf discontinued the use of the red sealant used around the primer and case neck intended to keep moisture out and prolong shelf life . They received too many complaints from end users of a build up from the red sealant on their firearms thus all new ammo produced from both plants will no longer have any red sealant . Potential Problems with Wolf Ammunition . Lacquer coating . Wolf no longer manufactures ammunition with a lacquer coating on the cartridge casing due to issues concerning lacquer - coated steel cartridges becoming stuck in the chamber of a firearm after firing , with difficulty in ejecting the spent cartridge afterwards . This appears to be more of a problem with cartridges with narrowly tapering walls ( e . g . . 223 Remington ) than those with rather steep case walls such as 7 . 62x39 mm cartridges or pistol ammunition . This also does not seem to pose much of a problem for Soviet or East Bloc designed weapons that tend to have looser chamber clearances than Western designed weapons . Tests have shown that steel - cased Wolf cases do not obturate sufficiently to form a good gas seal against the chamber when compared to brass - cased ammunition . As a result , when Wolf cartridges are fired , some of the combustion by - products are deposited between the case and the chamber , causing a build up of carbon that is well in excess of normal . Firing a brass case ( that does expand fully ) after using Wolf ammunition can result in the brass case being " glued " into the chamber by the carbon buildup . This issue has nothing to do with the lacquer coating vaporising or melting , as has mistakenly been suggested . The problem is one of carbon deposition , which creates the same end result ( i . e . ; a stuck cartridge that has jammed in the chamber ) . It is important to emphasise that Wolf ammunition is perfectly safe to use because it conforms to all SAAMI standards . However , it is recommended that firearms are thoroughly cleaned after using Wolf ammunition due to the increased rate of carbon build - up within the chamber . As mentioned in the previous paragraph , the looser chamber dimensions of Soviet designed weapons allow for more room during firing and extraction . Soviet or East Bloc weapons do not experience these problems . Note : all ammunition currently manufactured by Wolf has polymer - coated or brass cartridge cases and any obturation problems have been radically reduced . Steel - jacketed bullets . In addition to using steel casing , certain types of Wolf rifle cartridges use steel jacketed bullets , which are often copper - plated and cosmetically similar to standard copper - jacketed bullets . The copper exterior of the bullet is approximately . 005 inch thick , with an underlying steel jacket of about 1 / 32 inch thick . This type of ammunition is labeled " bimetal " . Indoor shooting ranges , which use backstops often constructed of steel , have accordingly widely prohibited steel - jacketed and bimetal ammunition to prevent shooters from damaging their backstops .