Case fill is considerably less which I like for most part. The CBTO was pretty similar except for the 190 Impact which seemed to like 0.025 best.
The throat on this barrel is SIGNIFICANTLY different than standard to fit my rifle specs which WILL NOT be similar to yours at all.
Standard Safety Statement: These loads were deemed to be safe in MY RIFLE not necessaruly safe in yours. Standard safe loading practices MANDATES you work up loads in your own rifle.
Preferred Barrel - 26" 5R, 300WSM - shortened throat to accommodate 2.95 Max COAL AICS magazine. I did notice that velocities seem to be higher in this barrel than previous barrels of same load.
180AB-RL16-63.5 gr = 3050 - pressure was a little bit higher but this was best node.
190ABLR-RL16- 63.5 gr = 3050 - this I thought was interesting result
190 Impact-RL-16-63.0=2980
200AB-Rl16-63.0=2925 - didn't push further since it shot so well at 63.0 and diminishing returns probably with pressure
By far the 190 ABLR shot the best for me with a CBTO of 0.010 and was well inside 1/2 MOA at 100 yds. Heck, I shot the best 10 shot group I have ever shot with it couple weeks back that was insanely small for what I normally see <1/2MOA. Then again, 3 days without coffee is a huge difference for me on the bench. Its been close to 90 last week and for next 7-10 days so probably not going to see range for a while.
The nicest aspect of RL16 is less powder is less recoil even with heavier bullets which is always nice for target re-acquisition. Personally, I think the 300WSM really seems to like the 190 stuff since that bullet just seems to shoot better for me.
