pricelistl_security/security/pricelist_security_security.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data>

    <record model="ir.rule" id="pricelist_security_rule">
        <field name="name">Pricelist only to specified users</field>
        <field name="model_id" ref="product.model_product_pricelist"/>
        <field name="domain_force">['|',('user_ids','=',False),('id','in',[pricelist.id for pricelist in user.pricelist_ids])]</field>
    </record>

</data>
</openerp>