Abstract: A reticle of a projectile-weapon aiming system such as a riflescope includes first and second series of secondary aiming marks spaced apart below a primary aiming point, the first and second series providing holdover aiming points for regularly incrementing target distances for respective subsonic and supersonic .300 AAC Blackout ammunition, or other differing types of ammunition, without requiring adjustment of the optics or settings of the aiming system.

Abstract: A reticle of a projectile-weapon aiming system such as a riflescope includes first and second series of secondary aiming marks spaced apart below a primary aiming point, the first and second series providing holdover aiming points for regularly incrementing target distances for respective subsonic and supersonic .300 AAC Blackout ammunition, or other differing types of ammunition, without requiring adjustment of the optics or settings of the aiming system.

Abstract: A reticle of a projectile-weapon aiming system such as a riflescope includes first and second series of secondary aiming marks spaced apart below a primary aiming point, the first and second series providing holdover aiming points for regularly incrementing target distances for respective subsonic and supersonic .300 AAC Blackout ammunition, or other differing types of ammunition, without requiring adjustment of the optics or settings of the aiming system.

Abstract: A reticle of a projectile-weapon aiming system such as a riflescope includes first and second series of secondary aiming marks spaced apart below a primary aiming point, the first and second series providing holdover aiming points for regularly incrementing target distances for respective subsonic and supersonic .300 AAC Blackout ammunition, or other differing types of ammunition, without requiring adjustment of the optics or settings of the aiming system.

Abstract: The present invention relates to a detergent composition in aqueous solution comprising,(i) a surfactant selected from anionic, nonionic, zwitterionic and cationic surfactants and mixtures thereof,(ii) a precursor compound capable of giving rise to a peroxygen compound in the presence of water,(iii) a bleach activator capable of enhancing the bleaching activity of the peroxygen compound so formed,(iv) a suds suppressing agent and(v) a detergent builder, characterized in that the bleach activator comprises one or more cyclic anhydrides containing at least one nitrogen atom in the alpha position with respect to at least one of the carbonyl functions in the anhydride and the activator is at least partially soluble in water.These compounds show bleaching activity at relatively low temperatures.

Abstract: The present invention relates to a detergent composition in aqueous solution comprising:(i) a surfactant selected from anionic, nonionic, zwitterionic and cationic surfactants and mixtures thereof,(ii) a precursor compound capable of giving rise to a peroxygen compound in the presence of water,(iii) a bleach activator capable of enhancing the bleaching activity of the peroxygen compound so formed,(iv) a suds suppressing agent and(v) a detergent building, characterised in that the bleach activator comprises one or more cyclic tertiary nitrogen compounds of a defined generic formula, said activator being at least partially soluble in water.The claimed bleach activators show bleaching activity at relatively low temperatures.

Abstract: This invention relates to slave controlled forward, reverse or third point measurements of at least one of group delay and attenuation distortions of any of a number of transmission sections connected in a measuring loop between a local transmitter and a local receiver. A swept test carrier frequency signal and a fixed reference carrier frequency signal are amplitude modulated by the same modulating frequency and are applied to the transmission section under test in a periodically alternating sequence. After passing through the transmission section under test, the thus generated envelopes of both signals will have suffered a time delay as well as an amplitude degradation caused by the frequency dependent group delay and attenuation characteristics of the transmission section under test.