Don't expect eos to throw an exception if ammo is invalid, be big and

check it ourselves  **Proud*

service/fit.py

@@ -248,10 +248,9 @@ class Fit(object):
         ammo = eos.db.getItem(ammoID)
 
         for pos in modules:
-            try:
+            mod = fit.modules[pos]
+            if mod.isValidCharge(ammo):
                 fit.modules[pos].charge = ammo
-            except:
-                pass
 
         fit.clear()
-        fit.calculateModifiedAttributes()
+        fit.calculateModifiedAttributes()