Thankyou @White Eagle @nmkid , sadly a lot of the powders available to you guys aren't available over here . So we end up using a so called equivalent . I've used RS62 as a 4350 replacement with good results in 270, 243 ,6.5 CM and my 6XC , it's quite primer picky as powders go . Availability is a little sporadic and prices here are spiralling , so it's important to make wise choices from the off .