Never heard of such.
It was a weak point I guess, probably an attempt to avoid Mauser patent infringement (which they got busted for and paid Germany $1/rifle until 1917), but in my two, plus seventy year old guns, both with either over or close to 1000 round round counts just by me, I had no problem.
It's probably not a good design for conscripts but it worked pretty good for US.
I don't know if that particular aspect has anything to do in particular the slow lock time the '03 is accused of but other than "too much engineering" I don't know of any particular '03 criticism.
There is the low number thing but that it is a dispute like was York shooting a 1917 or a 1903.
The Win Model 70 is an '03 built with the idea the tax payer wasn't going to eat the cost of production and profit had to be made.
Great guns!
