I shoot 230 all the time, so this matters to me. Do I keep it and replace with when the time to replace comes, or swap for the 18?

16 lb spring is correct for a full size 1911 shooting 230gr FMJ. 18lb is for hotter ammo but may be used in place of 16lb.
I run 16lb on all my full size 1911's.Government 1911 was design by JMB with a 16 lb spring using 230 ball ammo.

That's what I had thought, but the packaging was saying this was only for 185 and 200

So of course I was wanting to get a double check on opinions from those in the know here.

Thanks.

Soooooo, what 1911 you got?  Just curious.  I wish I had one now.  But I still do like the G26 for carrying.  But there's nothing like a 1911.  

Springfield Armory 1911 Loaded that is almost more Wilson Combat and Ed Brown than it is Springfield Armory right now.

A few weeks ago I started noticing that the slide velocity was slowing down. No FTE's or anything and as usual, always goes bang but I figured that maybe I should be proactive now and get a replacement spring before the possible inevitable happens. My loads are stout too; loaded a thousand 230 FMJ's with Power Pistol and the thousand 230 plated with Bullseye; man those loads can really give some flash

Next time onward, reloads will be with HP38.

16lb is the correct spring

Flat bottom firing pin stop and 16lb spring is good. I use a flat bottom firing pin stop with a Wilson Shok Buff and a Wolff 17lb spring.

16 is fine.