A few years back, I was at a gun range and a member had purchased some reloads for his lever action. The loads were too hot for his rifle and all it took was one shot. Guy didn't get hurt but the rifle was done.
I have a lot of trouble taking these kinds of anecdotes (which pop up all the time in these kinds of discussions) as serious arguments against using the ammunition.
What is described would require that the shooter be completely ignorant of the potential for misapplication. A load developed to be safe in one rifle might be moderately overpressure in another rifle of similar chambering and design, but will never be so overpressure that a single shot is going to destroy the gun. The only way that happens is the cartridge can be loaded to greatly different potential. An example would be the .45-70. If you took a cartridge loaded for a modern Marlin 1895 and fired it in a vintage 1873 Springfield, yes it would be bad for the gun. Anyone with even a passing knowledge of the history of cartridge firearms should be able to avoid an incident like that.
saw the aftermath this summer of a new reloader who mistakingly substituted IMR 4198 in his Tika 30-06 instead of IMR 4350. The rifle completely grenated on the first shot.
This is a little different from the case at hand for a couple of reasons. Firstly, a modern rifle load is not a handgun load. The proper powders are in the medium to slow spectrum so there are a lot of powders on the shelf that are inappropriately fast. The cartridge is routinely loaded to high load density. Neither of those factors is relevant here. The loads are already using fast powders and the only substitutions that could create problems are going to things like blank powder or flash powder, which most reloaders don't keep on hand. The charge densities are supposed to be low, and dumping a couple of samples onto the scale will tell you if that is correct or not.
Secondly, in this case the ammunition is a mistake and would not be safe in any rifle. It is described as bursting on the first shot. So if there is any evidence that the creator loaded and used this ammo regularly in his own firearms, it is highly unlikely to create a serious problem if used in another similar firearm.
I have definitely seen ammo that was loaded by others that I would not shoot. I have seen bullets I could spin by hand, and I have seen crimps so heavy the cases looked to have two shoulders. I have seen an SKS where the gas piston could not be removed because it was badly bent by the loads of compressed IMR4895 the owner used to hunt deer. Such loads do not normally exist in large numbers because the problems are obvious and the owners guns are quickly damaged. The ignorance and sloppy technique required to make mistakes like this are usually evident in the packaging, the record keeping, and the appearance of the cartridges themselves. A little investigation should allow any experienced handloader to recognize them.
Having said that, it brings to me a detail I did not note the first time I read this post:
I have a reloading press for 223 and 9mm that I haven't used or learned too yet.
It would appear the OP is a novice reloader himself. He probably does not yet have the acumen to spot the mistakes of others. This is probably the biggest reason to argue he should not use the ammo.