The 50th Edition of Lyman's handbook lists loads for 220 and 255 jacketed bullets and a bunch of powders including 3031, 4198, and H4895.
220 bullet 4198
Start velocity pressure Maximum velocity pressure
29.0 1949 44,100 33.0 2145 50,900
3031
30.3 1732 31,700 35.0 1983 40,700
255 bullet 4198
23.0 1542 34,500 25.7 1743 48,700
3031
26.8 1547 35,800 32.0 1771 40,900
With a 235 grain bullet I would employ the 255 grain data, and start low and slowly work up. Remember, the old "home pressure reading techniques" as espoused by Ken Waters and many others a generation or two ago have been proven false. If you get primer flattening, case head expansion, sticky bolt lift, etc. that were the accepted parameters, you've probably already been dancing in the realm of excessive pressure.
I love to read the old Ken Waters stuff. Heck, I bought those magazines back in the 70's-80's mainly to read his words of wisdom. But, today I consider it anecdotally good bedtime reading. Stuff has changed in the last 30-50 years plus he was flying basically by the seat of his pants with no pressure equipment to quantify his data. He even often issued stern warnings that his data was what worked for him on that given day in his guns. Given the choice between data published by a gun writer in a magazine in 1978 versus data from a modern up to date manual achieved under strictly controlled laboratory conditions, I'll opt for the data in the modern manual.
Last edited by gnoahhh; 06/02/22.
