Posted: Tue Mar 24, 2009 9:43 pm
For me, I'd rather heed the WARNING labels on modern ammo boxes that state, in effect, to "use only in modern guns originally chambered for this gauge and shell length". The earlier Fox guns were manufactured when smokeless bulk and dense powders were being developed, and ~7,000 psi ammunition was the norm. Today's ammo - including so-called low brass field loads - is loaded to 11,500 psi SAAMI max pressure to reliably function in autoloaders. No responsible source is going to say it's OK to use modern ammo in a 60+ year old Fox when the ammunition company professionals specifically warn us against doing it.
Another consideration rarely mentioned is the barrel flexing/harmonics when shooting high pressure-velocity ammo in tubes that are held together with old solder joints. It's my belief this accounts for more loose ribs than anyone realizes. Virtually all modern SxS's and over/unders intended for SAAMI max pressure ammo have tubes that are silver-soldered together, not soft lead/tin solder. The only exception I'm aware of has been Perazzi and last I heard they had gone to silver soldering because of popped barrel ribs.
Practically speaking, how many shells do most of us really shoot? Is the increase in cost for buying or loading low pressure, short length shotshells a major detriment to anyone here? Silvers
Another consideration rarely mentioned is the barrel flexing/harmonics when shooting high pressure-velocity ammo in tubes that are held together with old solder joints. It's my belief this accounts for more loose ribs than anyone realizes. Virtually all modern SxS's and over/unders intended for SAAMI max pressure ammo have tubes that are silver-soldered together, not soft lead/tin solder. The only exception I'm aware of has been Perazzi and last I heard they had gone to silver soldering because of popped barrel ribs.
Practically speaking, how many shells do most of us really shoot? Is the increase in cost for buying or loading low pressure, short length shotshells a major detriment to anyone here? Silvers