I have dies I purchased in 1990 or so from RCBS for my MS1910. Those, with fresh .35 Whelen brass (trimmed to length) and Hornady 3715 netted dimensional duplicates of DWM 531.

Watch Midway (midwayusa.com) for specials on 'factory seconds'. I bought 400 'second' 270 grain RN from them a year or so ago and I'm sure they are Hornady 3715.

They only have 300 grain RN now, but they do list Woodleigh Weldcore (out of stock) and fresh Kynoch 9.5X57 stuffed with same (available) at a mere $41.99 (USD) per box of five.