SK Brand Schoene-beck Germany
LAPUA GmbH

In 1829, the merchants Louis Sellier and Nicolaus Bellot founded a company for making percussion primers. In the 150 years to follow this company developed to a significant producer of ammunition and explosives. LAPUA OY, a Finnish enterprise, bought in 1992 the ammunition production in Schoene-beck. Under the guidance of the new owner the successful production of subcaliber, hunting and shot ammunition of the traditional SK brand could be further extended. Today, the LAPUA GmbH is one of the most important makers of
subcaliber ammunition. For many years, sport shooters, biathletes and hunters have put their trust in cartridges from Schoenebeck, which are especially known all over the world for their high precision, absolute reliability and perfect quality.

Wolf Match Target and SK Standard Plus are the same ammo made
on the same machines. The lighting makes the lubes look different but they are identical.

wolf-to-std

Please see the Wolf Website for details.

http://www.wolfammo.com/index.php?option=com_content&task=view&id=3&Itemid=118

Their summary:

Pasted Graphic One of the tightest and best grouping rimfire cartridges available in the world.

Pasted Graphic 1 Using the highest quality brass and a proprietary manufacturing technique yields virtually no case variance that delivers unmatched accuracy.

Pasted Graphic 2 Clean burning Vihtavuori powder and ultra reliable primer ignition.