Here is a photo of the 235g Speer loaded into a .375 Winchester cartridge. The case was trimmed back .136" from the minimum 2.010". Also shown is a loaded 200g Sierra. The Speer is loaded to 2.560" per spec, although it cycles and chambers at a somewhat longer length.
The photo clearly shows the 235g Speer has a much thinner jacket at the nose than does the 200g Sierra.
Ordered a Lee .375 Win crimp die. Without it the Speer is easy to push back into the case.