Hy JP. I don't know where people got that notion that the MGS will have a low pressure 105. From all the briefings I got on the thing its the same gun as the Leopard or M60. As a mater of fact the US is starting up production in Waterveliet arsenal to make the barels and they are the same as those used on their M60s. It will fire all the same ammo types as the current Leopard however the ammo carried will be more suited for defeating bunkers and infantry type targets. The armour school may have something to say about that however.
People must also remember that the MGS was never meant to be a replacement for the tank. A few years ago the Canadian Army made the decision that since it is very unlikely that it will fight in a high intensity war with a matched force equipped with modern MBT there is therefore no point in keeping a heavy force. As a result of this decision the entire Canadian army is transitioning its structure to be lighter and faster. With the full ISTAR suite deployed and backed up with the LAV TUA I think that we will have a very potent force to defeat the forces we will most likely face in the foreseable future. Studies conducted by the Army indicate that the most likely armour threat that Canada will face for the next 10 to 15 years is the venerable T-55 and T-62 used by third world countries. The MGS will defeat these tanks easily. I seem to remember many stories from Bosnia where our inferiorily equipped forces faced down beligerents with superior equipment. Please remember that war is not just about who has the bigest piece of kit on the battlefield, its also about tactics. Well trained and well lead troops will always prevail.