I shot a lot of them in the past...but their quality, consistency and thickness of plating, is not good..and when they kept raising their prices about 7 or 8 yrs ago, they become more expensive so I quit shooting them.
Take a handful of them out of a box ...and weigh them - and I think you'll find they vary a lot ..( on a 230gr RN they will vary 5 or 6 grains often ).
Today Rainier in case lots ...are more expensive than Montana Gold, which is a true premium jacketed bullet ...not plated. In my view, Berry's is a much better product / more consistent plating and thicker plating.
In magnum calibers... .357 Mag and .44 Mag... I have seen a lot of "plating fracture" on Rainiers...and the guns spitting a lot of shrapnel as they leave the muzzle..which is not good.
I think Rainier is safe to shoot - fine for practice - at lower velocities.. in 9mm, .45 acp, etc...but unless they were 50% cheaper than Berry's I wouldn't shoot them. In case lots now ... 4,000 bullets in 115 gr FMJ 9mm is $340 a case delivered or $85 per 1,000 .... / Midway's price right now on Rainier is $96 per thousand plus shipping...so hands down Montana Gold is a better price and a significantly better product in my view.
I just checked prices on Berry's too ...and they are $93.13 per 1,000 plus shipping...so they are cheaper than Rainier too...