Welcome in a quiet world.
First, suppressors have some legal concern here and there. You may already aware of this part of the problem.
In my little country, they are legal for "range" use, no hunting and tactical use is an other subject.
For all greater than 22lr and 22H, i choose BR-Tuote's products:
http://guns.connect.fi/innoplaza/rs/index.html http://www.soundmoderators.co.uk/techinfo.htmOwn already a 30-30 next will be a 45-70 both with a BR-T8.
They cost me about $350 US (Euro conversion).
You may find this brand in your country,
http://www.reloaders.co.nz/index.htmlbut
the most important part is the smith that will do the work, accuracy rely on his work.
Suppressors (good one) help the shooter.
+ They didn't decrease accuracy, just move POI.
+ They increase shooter's concentration, no sound and no blast to "fear".
+ They are also efficient recoil suppressor, 50% or more.
= Group size shrink !.
I prefer, removable suppressor.
+ Work as well, if not better than integrated/integral one.
+ Rifle may recover original design when needed.
- Sighting is different with or without.
None of my rifles didn't show threads on the muzzle. When i look at a new one, one of the very first question is "could a suppressor be fitted ?".