Its more in line with who fires first rather than how many they can fire, if you are engaged and hit by a Challenger 2 firing APFSDS(DU)you are dead. If the Challenger misses and your tank is capable of penetrating Challengers frontal armour then the challenger is dead. Its the first round that counts. I would expect any modern tank firing DU ammunition to penetrate Challengers armour. Older tanks such as T-72 will have a more difficult time as has been proven in combat. Now as to the M1 I have not had much experience with that vehicle but I have crewed an older Australian leopard 1a4 also a 105mm gun and the shells are definately easier to load on the move than a 120mm case so I would think that the 105mm M1 would be able to achieve 2 rounds a minute. I like Winspmbt its a great game and fills my x-military cravings, but we must remember its just a game and no matter how dedicated and professional the team behind it you will never be able to match the realities of real warfare. An example is that although a tank my have certain specifications, for instance say the speed rating for Challenger 2 is 54kpm, in real life that may not be true for every tank. Each vehicle will be different, in my Troop my own tank could easily cruise at 60kpm but my troop corporals could never get above 40kpm, some tanks run smoothly others are always in the repair yard, we even had one challenger which was always catching fire in the engine decks but no fault could be found. The one thing I can guarantee no matter what tank your in, if your tank is static and the enemy is moving you will get the first shot. In the past 10 years our targets now fire back due to the new laser engagement systems we use much like the American kit. We now fight battlegroup against battlegroup and it makes a huge difference when the enemy is a living, breathing target who can think for himself. When we first started using the system battlefield casualties were so high that it forced the British army to completely rethink its combat tactics. Over the past few years those tactics have proven to be successful and casualty rates are normally low unless you are up against an extremely gifted commander or you have a Dunce as a Battlegroup commander, lol. I took no offense from the miss-spelling of my nickname, this is a mature forum and I would not expect namecalling therefore I took it for what it was, a miss-spelling
