What I read about John browning in gun digest was that he wantee Winchester to pay royalties for the auto 5 design instead of buying it outright like they did with virtually all the other Browning designed firearms ( ALL the Winchester levers, and the 1885 style single shots as well as some others!)
They said "NO!" and he said "Adios!"
A rep from Fabrique National was waiting to see Winchester at the same time and Gave Browning his card.
that was the start of the FN made brownings, and the remington model 11 also, which is an Auto 5 as well.
The rest is all history - likely the WORST mistake Winchester ever made!!
Cat