The model 4 and7400 were designed after the people that designed the 740 and 742 retired.It ain't quite the same. With 4350 your still getting more as pressure at the port than you need to operate the action.With the number of 742's still around the factorycan't load ammo with a pressure curve that will tear it up.I have seen 742's with the reciever bulged out from 60 grs. of 4831,the surplus stuff you could get for $.25 a pound.You had to bring your own can.I had a Remington 740,middle loads of 4350 worked in it but it had a tendency to hang up,the case wasn't getting out of the way fast enough beforethe bolt went forward again because the bolt was moving to fast to sart with,to much pressure at the gas port.Didn't have that problem with 4895 or 4064,it had other problems but the jamming pretty much went away. Had a Belgian Browning too in 30/06,an entirely different,much higher class of semi auto.It was an offshoot of a Belgian military rifle design.Never shot any thing but 4895 and 4064 in it.That old gunsmith I used to work for used to say he made a living from torn up 742's and 740's that were shot with slow burning powder reloads.30-35 years ago 4895 was in the middle of the burn rate chart and thats what was said to work the best in semi auto's,powders in the middle of the burn rate chart.A lot of people have to make the same mistake others have made before them and suffer the results before they believe that they are making a mistake.An M1 Garand is a considerably stouter weapon than any Remington,every piece is heavier than the same piece on a remington,and if you can tear up M1's with slow powders than you can be assured of tearing remingtons with them.