Shuriken and Masterwork Ammunition

[TheFlyingPhoton]

I have a few questions about buying masterwork and special material shuriken specifically regarding society play.
I remember a rule that masterwork ammunition had to be bought in sets of 50, but flipping through the rules, I cannot find that statement. I found where masterwork is listed as 6 gp per individual piece, but the requirement to buy 50 would be in effect so that players would still have to pay 300 gp in order to get the benefits of masterwork with their attacks. Could someone point to where that is? And also point me to any PFS-specific rules regarding masterwork ammunition.
The following questions are going to assume I remember that rule correctly (and a few will be specific cases of the same question, if you'll pardon that).

1) If I buy masterwork arrows, is the cost for a set of 50 going to be 301 gp, or 302.5 gold pieces, being 300 + cost for 2.5 sets of mundane arrows? As such, masterwork shuriken will be either 301 gp for 50 or 310 gp for 50 based on the same reasoning (as 10 sets of shuriken = 50 shuriken).

2) If I buy non-masterwork cold iron shuriken I can buy only 5 of them for 2 gp, but if I want masterwork cold iron shuriken, then the cost would be 302 gp for 50 or 320 gp for 50 as per the answer to #1.

3) Mithral items are automatically considered masterwork, so mithral ammunition must be bought in sets of 50 as well, correct?

4) If I wanted mithral shuriken, the price would be 2501 gp or 2510 gp, as per the answer to #1, since 50 shuriken for a medium creature weigh 5 lbs (and 1251 gp or 1260 gp for a small creature).

5) Does the silver weapon blanch not confer the -1 to damage that a piercing/slashing silver weapon normally gets? Once a weapon blanch is applied, is there any kind of time limit before it wears off if you don't use the blanched item?

[Haco]

I believe that this rule is only for non reusable ammunition like arrows, bolts and ammo for guns, not for shurikens or throwing daggers.

[havoc xiii]

Shuriken are non reusable....

[Andreas Forster]

You pay 6 gp/projectile + the base cost:

Core Rulebook wrote:

The masterwork quality adds 300 gp to the cost of a normal weapon (or 6 gp to the cost of a single unit of ammunition). Adding the masterwork quality to a double weapon costs twice the normal increase (+600 gp).

I don't see any mentioning of having to buy masterwork ammunition in quantities of 50.

So a quiver of masterwork crossbow bolts would be 61 gp (10 bolts) and a quiver of masterwork arrows would be 121 gp (20 arrows).
Shuriken or clips of repearing crossbow bolts would be 31 gp (5 pieces).

Magical ammunition, however, has to be bought in quantities of 50 (which will have a masterwork price modifier of 300, like every other weapon), otherwise calculating the price of the enhancement would get too complicated.

This means, for example, a quiver of +1 crossbow bolts costs 2305 gp, a quiver of +1 arrows costs 2302.5 gp, and a set of +1 shuriken or a clip of +1 repeating crossbow bolts costs 2310 gp.

[TheFlyingPhoton]

Okay, thanks. I must have mentally included masterwork with the rules about magic ammunition purchases. That actually fixes all of the micromanagey issues I was having.

[kinevon]

In regards to your last question:
Silver blanch does NOT confer the -1 to damage, as it is only a coating on the weapon, not the weapon being made of a material that doesn't hold an edge as well as steel does.

Blanch lasts, after appl;ication, until used. You must notate tyhe purchase and application on an ITS/Chronicle, along with a Chronicle number for when it is used.

Note that weapon blanches only work for the first hit with the weapon, and can either be applied to a single melee weapon, or a batch of 10 pieces of ammunition, so it would cover two batches of shuriken for a single dose of whatever weapon blanch you apply.

You can also apply weapon blanch of one type to a weapon made of another special material, and both types would apply to that next hit. Which is why you can see mention in some threads of archer types, after a certain point, whose "standard" ammunition is silver-blanched cold iron arrows.

Oh, and ghost salt is probably one of the best, if least likely to get used regularly, blanches available. Incorporeal doesn't really get affected by Clustershot, after all...