Comparing 480 and 475

[bula]

So..a tipping point with bullet weight. Thanks for explaining so clearly. 

[bigbore5]

Most loaders will do a limited number of experiments centered around what bullets and powders they want to use and are satisfied there. More to them.

All my needs are met with 3 cartridges. 32H&R,357mag, and 500L. All the others are just interesting, but rarely used honestly. Even with the three I use most, I rely on 4 loads between them. 98grswc 32's, 170grswc 357's, and a 355grswc or 525gr/485gr mp bullet in the 500L.

But I do experiment with the others extensively. It's my hobby to not only try different things but to push them. It's interesting even if I don't push my regular loads much to know exactly how far it can go and where the best function is. They're rarely the same thing.

[edk]

Dec 1, 2023 11:44:07 GMT -5 lar4570 said:

If you can seat your bullets out to 475 length, you can get full 475 velocities in the 480.
Max pressure for the 480 is 48k
Max pressure for the 475 is 50k...

This is physics and most often is ignored. Loaded to the same OAL, a 2Kpsi difference in pressure is likely a typical variance and thus, there exists no real difference between the two.

[bigbore5]

Even loaded to the different oal, there's almost no velocity difference worth mentioning between them in the shorter barrel guns. Only so much powder burns in a certain amount of time at similar pressure. The rest becomes muzzle blast.

[edk]

Curious though how Ruger & Hornady managed to design the 480 to be so soft shooting - not much different than a 44magnum said the gunwriters. In comparison, the 475L will tear your arm off...


And the legend continues to this day...