Hodgdon data, 158gr: Something's wrong here?

[the86d]

700x:
4.9 gr w/SWC Lead - 1137 FPS, OR 5.7gr w/JHP - 1150 FPS,
Both going w/in 13 FPS of each other?

Both are listed as .357 diameter.

Does this look like it could even be right?

[Maconga]

Yes, It could be right.

[mjmagee67]

Yes it looks perfectly fine to me. One is a jacketed bullet the other is a cast lead. Jacketed bullets take more powder to get equal velocity of a cast lead bullet.

On my limited gun it takes 5.0gr of N320 to Power Factor when I use coated cast bullets, when I change to Montana Golden Bullets it takes 5.4gr to make the same Power Factor.

[9mmepiphany]

700x:
4.9 gr w/SWC Lead - 1137 FPS, OR 5.7gr w/JHP - 1150 FPS,
Both going w/in 13 FPS of each other?

Both are listed as .357 diameter.

Does this look like it could even be right?

Looks fine, why would it not look right, it isn't as if they were the same bullet...one is a jacketed bullet and the other is cast.

There is a similar difference between coated lead and plated.

[tonyjr]

This is why you should have several reloading books / manuals .
Miss prints can do bad things .
When in douth check somewhere else .
There are a bunch of sites out there .
The big thing about cast is the speed the pill starts to fall apart .
Even FMJ = depends on who makes them . Different grades of copper / hardness .
My desert eagles manuals say not to use cast . I only use jacketed pills 75% of my guns are semi autos . A few revolvers and bolt action .
Another thing is cleaning / handling lead