I've already shot in long range competition with hi power rifles m1, m1a , ar15 at range between 100-500 yrds with open sights. Even hunted with 3 custom xp100's 7mm br, 284 win, 358win HS presion stocks for 20 years for deer and black bear in allegany mountains and adirondak mountains. Used a custom 284 xp100 for wood chucks up to 400 yrds regularly,used 358 winchester xp100 for deer and bear.
Even did the TC contender and encore for a while, before I determined all the problems they had.
Savage striker was pretty good platform , but the xp100 blew it out of the water.
Even used a scoped dan wesson 357 mag on wood chucks up to a 100 yrds.
All the custom and match work on the m1 and M1a ar15 was done on my own, as well as custom fn mauser and remington 700 I was able to blue print or true up at work.
Old employer had a $10 million reasearch machine shop that I could use at night, you could sneak in almost anything at night as long as it didn't look like a gun or part of a car etc. they had no problem with G jobs at work on your own time.
I gave up a lot of the shooting after a ENT Doc specialist said I had a hi end hearing loss and tinitus( ringing) and would go deaf if I didn't give up all the shooting. It turns out the only gun you can safely shoot is a silenced rimfire plus muffs. He told me you have to limit the burst with muffs to 80db and all the rimfire and center fire hand guns and rifles, even shot guns can't be safely fired 150-170 db -33db reduction = 117 - 137 burst to ear.
22lr is about 135db - 33db reduction 103 burst is still pretty high and will do damage over a long time of shooting.
Simple math the ear muff burst must be reduced to 80-90 db.
Note this is info you can get only from OSA or from a ENT Doc, you won't find out much about it from gun websites, you bring up the topic and you seem anti gun right away.
So right now I'm looking into silencers for the pistols and rifles to safely shoot again.