The primary advantage the .358 can provide is your ability to neck up 308 for an un-limited supply of brass. 35 Remington brass is hard to find and expensive. Hornady is shipping .35 rem brass right now which is helping the shortage issue from Remington.
The .35 rem loaded with 43.0 to 45.0 grains Hodgdon LVR powder can reach with in 200 to 250 feet per second of the .358. Not sure if a 200 FPS slower bullet will matter at "Woods" ranges. Like comparing the .308 to the 30-06.
The most coveted bullet for the .35 rem and the .358 win is the Remington 200 gr round nose core-lokt. The last time Remington shipped the .35 rem 200 gr RN as a component bullet was December of 2013. With either cartridge you choose there are challenges in components.
Doc
There is NO way you are getting within 200-250 fps of the 358.
