I pay very little attention (no) to any forum expert, gun counter clerk, pet loads website, range rat, or gun shop guru whe it pertains to load data and often choosing powders. I get 99% of my load data from my published reloading manuals (each of my manuals also as a section on powders where each powder gets a short description, and "normal" usage).
While I always verify info gleaned from
" forum experts, gun counter clerks, pet loads websites, range rats, or gun shop gurus" with published load manuals, I pay attention when I hear from a majority of them that their opinion of something is similar. This is what mentors and reloading forums are all about......getting info. But there is a big difference between fact and opinion. Your and the "gentleman at the reloading store" have a similar opinion about H110/W296, but the facts are, it is just as safe and easy for new reloaders to use as any powder and in many cases, better. Where folks get into trouble with H110/W296 is when they don't follow directions. H110/W296 will not blow up a .44 mag, even when used with a full case of powder. This is not true of faster burning powders. Where folks get into trouble with H110/W296 is going below published min loads and sticking a bullet in the barrel....and then following up with another shot.
My only reason for no longer using H110/W296 is that it's a full out Magnum powder, not advised to down load. Once I got over my "Magnumitis" I found slightly faster powders, that can be loaded to less than wrist breaking recoil, hot loads.
H110/W296 is and always has been touted as a "full out magnum powder" and for good reason. It and other similar powders are what puts the "Magnum" in a .44 Mag. While downloading .44 mag with faster powders may make for a more pleasant range experience for some shooters, for hunting deer with a rifle, my opinion is one really should load the cartridge to it's potential. One owes that to their quarry. Recoil is not an issue with a .44 carbine, even with legitimate .44 mag loads.
For a new .44 Magnum reloader there's nothing wrong with Unique (after all Unique is the "classic celebrity" load. Kieth's 10 gr. under a 250 gr. LSWC).
Unique is a very versatile powder and I use a lot of it. Every reloader should have a jug of it on their shelf. Still, because of it's tendency to be very inconsistent when thrown from a powder measure, it can be very frustrating for new reloaders and even experienced reloaders that are used to consistent weights. One only needs to search "measuring Unique" to see how common this is. Hard to convince many that .1-.2gr of difference makes for very little difference in performance and then tell them in the next sentence that .1-.2gr of another powder(bullseye for example) is a big no-no. I generally shy new reloaders away from Unique because there are many other options out there that perform just as well, but measure more easily and throw more consistently. Exception would be those newbies using scoops and measuring by volume only and not by weight. That is where Unique really shies, when charged by volume, and why it was preferred back in the day when most folks used a scoop.
Do a bit of reading/research in your reloading manual(s) and research powder manufacturer's websites. Go slow, double check everything, and most important have fun...
....on this, I totally agree. I will add tho, one should always use at least three sources of published info to verify a starting point when developing new loads. What is min in some manuals is over max in others. Having three sources makes so you can throw out the high and low extremes(even if they are proven safe) and start somewhere on similar ground.