Abstract: The invention relates to a training weapon system for a portable recoilless anti-armor weapon of the type which comprises a sub-caliber insert barrel (1) arranged in the bore of the launching barrel of the full-caliber weapon. In order to improve the accuracy of the system and make it more safe as well as less expensive when compared to previous systems of this type, the sub-caliber insert barrel (1) has a rifled bore to make the training projectile spin stabilized. The forward aligning member (5) for centering the insert barrel (1) is engaging the ridges of the rifles in the rifled portion of the barrel in the recoilless full caliber weapon. By such an arrangement it can be avoided that length tolerances give rise to undesired radical deviations which might result in a mis-alignment of the insert barrel (1) within the gun bore. This could happen with the forward aligning member engaging the conical, smooth-bored firing chamber in the barrel.

Abstract: A practice weapon for a hand-held recoilless anti-armor weapon including a sub-calibre barrel mounted in a full caliber barrel to enable a marksman to repeatedly train and be subjected to the powerful noise and pressure effects of firing a full caliber weapon. The practice weapon according to the invention includes a marker charge, which is arranged to be ignited in response to firing of a sub-caliber practice round. In order to transfer the ignition sequence in a simple fashion with few moving parts, the marker charge is arranged to be ignited by the jet of flame and powder gases generated by the firing of the practice round.