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Kyrie · 03-04-2001, 05:23 PM

Hi Mark,

Just purely FYI...

Cartridges from the same lot and even the same box will not produce the same pressure curves in different firearms. Among the things that determine the actual pressure curve produced by each cartridge are bore, throat, and bore size and condition, temperature of the propellant and the primer at the instant of ignition, and even the position of the propellant in the cartridge case. These factors can be cumulative, producing differences in peak chamber pressures in the thousands (and sometimes the tens of thousands) of P.S.I.

If you see differences in the wear pattern on two Lugers being feed the same ammunition those differences may be due to the above and to differences in how well the recoil spring is wearing.

Regarding the excessive wear you are seeing on the toggle ramp, there is a problem of some kind present. It may be excessive pressure ammunition, a worn recoil spring, or a material problem with the pistol itself (the stainless steel Lugers are, alas, known for material problems). I'd strongly suggest determining and correcting the problem. If left to itself, it's only going to get worse :-(

Hope this helps.

Best regards,

Kyrie

03-04-2001, 05:23 PM	#7
Kyrie User Join Date: Jun 2002 Posts: 757 Thanks: 0 Thanked 212 Times in 101 Posts	Re: Stoeger P-08 Hi Mark, Just purely FYI... Cartridges from the same lot and even the same box will not produce the same pressure curves in different firearms. Among the things that determine the actual pressure curve produced by each cartridge are bore, throat, and bore size and condition, temperature of the propellant and the primer at the instant of ignition, and even the position of the propellant in the cartridge case. These factors can be cumulative, producing differences in peak chamber pressures in the thousands (and sometimes the tens of thousands) of P.S.I. If you see differences in the wear pattern on two Lugers being feed the same ammunition those differences may be due to the above and to differences in how well the recoil spring is wearing. Regarding the excessive wear you are seeing on the toggle ramp, there is a problem of some kind present. It may be excessive pressure ammunition, a worn recoil spring, or a material problem with the pistol itself (the stainless steel Lugers are, alas, known for material problems). I'd strongly suggest determining and correcting the problem. If left to itself, it's only going to get worse :-( Hope this helps. Best regards, Kyrie