I bought 150 gr Sciroccos when I started handloading with a Lee Loader kit for my old 1917 Enfield. I didn't know much. In the years since then I have tried to refine my techniques while improving my equipment. I have read and researched voraciously. I still have a lot to learn but am glad to share what I have learned so far.
To date my best H414 loads have been with Hornady brass, Winchester primers, seating to the lands. I am shooting a Thompson Center Venture that I did some stock work and a bedding job on. I do intend to invest in Lapua brass down the line and I have no complaints about the Winchester brass that I have used, but so far Hornady has an edge among the brands I have tried.
I have only loaded the 150 gr Sciroccos so far but am eager to try the 180s. They shoot consistently and terminal performance has left nothing to be desired. This is untested theory on my part but based on the experience of others I believe the Sciroccos are probably a little on the tough side if you ever intend to stretch out past 400 yards at '06 speeds. Closer than that I think they are money. And if I were sure of my POI past 400 I'd use them. I'm just not there yet as a shooter.
As for H414, even though it is temp sensitive, it is one of the more versatile powders out there. You can find book listings for it in the '06 for bullet weights from 120gr to 250 gr, and it is in the upper end of the listed velocity spectrum in all weights.
I shot groups with loads from the same batch on a 65-70 degree day then on a 35 degree day a couple weeks later. POI had moved a couple inches but grouping was the same. I find the spherical powder very loader friendly whatever your method. The one time I've been able to shoot through a chronograph was with a batch I had loaded by volume which some people seem to find offensive. Offensive or not my extreme spread in velocity was 21 fps. I can live with that, especially when we are talking about hunting loads for normal ranges.
So far my reloading has been geared completely toward consistency so I have just been loading for about 2700 fps which is a very easy and safe velocity with 150gr bullets in an '06. This year I will start pushing my velocities up. I will keep loading H414 as well as IMR4350 and R22. I'd like to try H4350 and Superformance sometime down the line. But for this off-season the 3 I have should makefor some good experimentation.
FYI, could just be my rifle, but I am finding that Sciroccos and Amaxes group a lot alike. You can do a whole lot of practicing and load development work for not much money with Amaxes then do some tinkering with the more expensive Sciroccos once you've found a velocity/accuracy sweet spot.