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Arsa produces muzzleloaders exclusively, long & hand guns, including an under hammer pistol.
This is a British company that sells them, and this is their review, along with pics/descriptions of the various modes:
http://www.roaring-forties.co.uk/home/arsa-pistolsAvancarga ArSa is a (Basque/Spanish) husband and wife team.
Jesus Mari Araquistain worked for twenty seven years as a stocker and gunsmith with the famous Spanish sporting gun maker Victory (Victor)
Sarasqueta of Eibar.
When his mentor died he started ArSa in 1987 with a co-worker, later to become his wife, Elisa Santiago (hence ArSa).
Responsibilities are divided, with Eli making and carving or chequering the stocks (and responsible for all the admin.), Oscar Sarriguarte makes the metal components and Jesus assembles and finishes the guns.
They have built their business steadily improving both quality and accuracy in their expanding range, currently seven, of Black Powder Pistols produced by traditional methods.
Everything is done in house, with the exception of D. Salvador Sánchez Morales’s hand engraving.
They rifle their own barrels and copy/cast parts in lost wax from original guns.
Over the last few years they have accumulated an impressive collection of World Records and Medals at International shooting competitions.
These guns work well ‘out of the box’ and the suggested loads are meant as a starting point from which individual shooters will adjust to suit their own styles and local conditions.