Extrapolated .338 LM Load Chart

[Host]

Don't know if this would be helpful to anyone, but thought I would post this extrapolated loading chart for the .338 Lapua Magnum.

All the chart contents in Black are straight from the book, all the red italicized ones are calculated out using a corsponding quadratic equation and projected along a matching parabola, then rounded to the nearest 10th.

The amounts at the bottom are a quick chart for how many reloaded rounds you can get out of each pound of ammo for each grain/velocity you choose. Chart goes from subsonic up to Mach 3 for all 4 bullet weights.

Please note, many of these powders are not designed to be used under many of these shown loads. Also, the max capacity of the LM is around 113, so there are loads shown which literally don't fit. This is just a complete projection for reference only.

Also, at this time I only made this for the .338, didn't make this for any other calibers... sorry, maybe some day.

With all that said, here's the chart:

 

[85MikeTPI]

 

[atblis]

Wut?

 

[outrider58]

 

[Host]

Wut?

It's the powder grain count needed for each reload corresponding to the bullet weights and anticipated velocity/force, and then it's tabulated at the bottom for expected loads per lbs.

So if you max loaded a 338 250 grain and were using H1000 you would get approx 70 rounds per lb of powder.

That would also net an approx barrel velocity of 3400 and a 6400 ft-lbs of force.

 

[atblis]

force, power, energy, ehh it’s all the same.

Some of the powders it would be hard to get enough in the case to cause a catastrophic failure. I am pretty sure you could do something real bad with H4831 in a 338 Lapua.