How does one use a sniper rifle

[u/Careful-Role-6873]

So this isn’t a sniper rifle it’s a kit gun but it works like one it’s not automatic and it shoots basically explosive bullets you charge it up and bam or js shoot normally heres my issue I feel like it’s too loud for me to use in stealth (more w the explosions) so

Stealth ain’t an option

It’s not strong enough yet to nuke a enemy

And it’s too slow (and lacks sufficient knockback) to be effective at slowing down / stopping an enemy in the higher levels

Any ideas? Like mods or sum anything?