Be careful of using projectiles with H construction such as the Nosler Partition. Same with monometal bullets. Some people use them, I have asked some gunmakers and some do not seem to think there is an issue, but also do not regulate their rifles with such bullets. However some people also believe they can cause damage.

The Woodleigh bullets are good.

Regarding the first paragraph I know (for big bore calibres) Woodleigh did thicken and strengthen the jacket on some of their FMJ bullets making them more reliable on impact and in penetration. But also with a negative on barrel life. Not usually a big problem with the user uses SPs most of the time.

Just my comments. Other people may think differently.

Referring to double rifles and other thin walled barrelled rifles.