Even though the 03A3 was the "offical" US weapon, I've seen statistics that show the 1917 as being actually used more.
I think that the 1903A3 wasn't in production until the 1940s
The Gewehr 98. The American copy is total rubbish. 8mm mauser produces more muzzle energy than .30-06 according to S&B, plus theirs did not have heat treating problems.
Interesting points. I support your ability to have an opinion, but your basis for 'total rubbish' is open to debate, I believe. M1903s were fine target rifles, and while it is true that low serial numbers may have had heat treat issues- today resulting in the 'rule of thumb' about receivers below one million (or 800,000 depending on source used), this hardly is a 'feature' of the rifle, nor is it exactly commonplace. I'd be curious to learn of percentages of 'blow ups' on M1903s with receivers below 800,000. I wouldn't risk shooting one myself, but isn't it a curious twist of logic to call the M1903- a Mauser copy- which led to, in my opinion, an improvement over the original Mauser design- "rubbish", when it was so closely copied it led to lawsuits and monies forked over in damages? Wouldn't that therefore suggest that the
original design was flawed in an intrinsic way? Since I can see no logical basis for feeling the original Mauser design was flawed (based on it's intended use, of course) then I cannot agree that the M1903 was therefore a flawed design. Then too, the 30-06 cartridge is incredibly popular even today. Over a century later, it is a viable and popular round, even when all these specialty cartridges exist. Even in the 1940s, the Germans used express cartridges in specially developed sniper/target Mausers that were superior to both the 8mm and the 30-06 in many ways. Does that make the 8mm Mauser cartridge a bad round? Not to my way of thinking.
But, are you comparing modern commercial 30-06 to the round they were using in WWI, the M1906, and then contrasting that to the 8mm Mauser round of WWI? M1 ball is not M1906 is not M2 ball is not etc etc etc
What real disadvantage does the slightly higher muzzle velocity confer upon the Mauser in WW1, in any case?
Then too, isn't the rifle that the M1903 actually emulated the 189
3 Mauser, not the Mauser 1898?