Looking through norma's ammo catalog I noticed that instead of the normal 400 grain solid that they used for all other 416 calibers they went to the trouble of making a 375 grain solid just for the 416 taylor. The muzzle velocity they have for the taylor with that bullit is 2,350 ft./sec. I know with it's case capacity it strains to keep up with the 416 rem., ruger and rigby but it would have no problem matching the current 404 jeffery loadings. Do they think it wouldn't sell with a 400 grain bullit and 2,325 ft./sec.?

something the screw machine spit out of the cad package

or may have a special shape to help it fly better at sci in the conference hall vacuum

sci that's a special set of conditions-- as you may-- or may not realize

just ordered 500 brass

looking at the taylor loads on the ''bullet reloader /loader section'' of this site -- do not know which one [s] of you guys developed them

what rifle--- does anyone on on the forum here know ?

then

also

reloaders nest has 16 loads from 300 gr to the hornady 450 so we will see how the new brass works on the good old 416 taylor

it was as norma brass is a bit pricy

Case capacity can be an issue with the Taylor. At least it has been for me.
I am not familiar with Norma's 416 bullets, but perhaps the bullet base penetrates too far into the case.
My other thought was that European cartridge standards may limit the overall length or some other parameter that result in the lower velocity and bullet weight being selected.
I wouldn't think the weight and velocity would make much difference if it's accurate and the bullet has proper construction, but I have no experience on those issues. Just an opinion based on what I've read.
Bfly

it is a smaller volume for sure

my way of thinking goes back to the parent case 458 win mag

never going to be a 450 3 1/4 round and yet it kills so very well

the taylor is not a rigby some guys have jacked it up close and there is the data by waters to consider which to my mind is not insignificant

still- when loaded moderately-- it is none the less-- a killer of a round

and not hard to hold on target and shoot straight with