If you are building a hunting rifle, it is hard to stop at 358 caliber when a very short step up gets you to 375.

This, of course, is the 375 Taylor.

Sabot has it right, but I'd comment on one more aspect: costs.

I have both a .358 Norma Mag and a .375 H&H mag (and have been considering the .375 Taylor for quite a while so I'm very familiar with its ballistics too).

The main advantage of the .358 Norma is cheap practice! I load the cheap .358 bullets intended for pistols. There are no cheap jacketed bullets for a .375!

My goal in life is to wear out my stainless steel handmade Border barrel on my .357 Norma Mag! I like to practice a lot... and the .358 is a champ when it comes to cheap practice.

jpb

Quote:

---

If you are building a hunting rifle, it is hard to stop at 358 caliber when a very short step up gets you to 375.

This, of course, is the 375 Taylor.

---

Over the weekend I looked up the reloading data for the 358 and the 338WM. I took the avereage of the four highest max. load velocities for 250grs out of the Lee reloading book, while I don't have the numbers in front of me I found that the 358 averaged 100fps more than the 338WM. This was with bullets of higher *BC on average than the 338, but I went ahead ran the +/-3" point blank range and 300yd and 400yd drop numbers for each assuming Nosler Partitions for each.

The calculations were done using the different BCs for each caliber.

In short I found that the 358 loses nothing to 338 when it comes to flatness and has very slightly less drop.



* By "bullets of higher BC" I ment by bullet type, such as RN vs Spitzer. Of course the BCs for .338cal are higher for equal weights assuming the same make and design.