It seems the Winchester 115 gr. Silvertips may be either a myth or a marketing lead-in: places where I've seem them listed/advertised and who have taken orders for them, have then always followed up with an "I'm sorry, these items are on back-order... etc. etc.)", and so, for month upon month, were never delivered. These were evidently not fradulent come-ons, since I was never charged for any of these orders, and subsequently just cancelled them. Since then I've gone entirely with 115 Gr. Speer Gold Dots, and have never had a failure of any type, and the supply seems to be reasonably secure and available.