[Double Naught Spy]

230 gr ball is fine, but the powder being used also comes into play. A 16# spring might be fine, but I prefer a heavier spring. Too much factory ammo is loaded normal or a little hot and the heavier spring keeps the gun from being battered. This is especially true if your gun has an aluminum frame. I use Wilson springs.

I suggest that you try some springs of different weights and find out what works best for you.