i was unsure if changing some of the steel to TSS would change the pressure within the shell when using a steel recipe. you guys say no though? just use a steel recipe and replace however much i want with TSS?Apex is 1oz steel 2’s under 0.25oz of tss 9’s in a tps wad and 3” euro/Cheddite hull/primer.
You can make a similar load with 0.75oz steel and 0.30 oz of tss or more fit in a csd100 wad using steel load data (33grain of steel powder, Longshot is an option as well.).
To get the desired speed, and im sure it has the filler was to make the load "full".So my question is, why does hw 13 require a 10% powder drop over hw12?
Again, that is making a FULL LOAD. If you take 1/4oz steel shot out and put 1/4oz tss in, it will have less pressure because there will be extra space in the load.In Tom Rosters 2019 hevi-shot supplement, he said that going from 12 to 13 cc requires a 10% powder drop. He said, the harder the shot, the higher the pressure ( I believe, I am out driving). The impact of the initial pressure into a harder substance should increase the initial pressure. He said buffer would further increase pressure, but filler, ie felt, cork, ect made no difference. Not saying you are wrong, just there is information out that would suggest otherwise.
You can roll crimp any fold crimp data according to BPI. Duck load? You could load a real nice 1300-1375 1oz load with a-steel, I loaded a slightly slower one for doves last year for a buddy using #6 shot and he took a few early teal with it as well. Load it with 3/4oz steel 3's or 4's and cut it with 1/4oz of 9s or 10s and I bet you it would be killer. It was a really light shooting load and patterned well for him with a LM carlsons in a SX4.1/4 oz tss and 3/4 oz steel has my attention. I only hand load turkey loads so I roll crimp, any waterfowl load rolled?
Was thinking 20ga but interested in a light 12ga 2 3/4 load really.
When I had some Federal 3-1/2" 1-7/8 oz of TSS #2 shot loads tested, a few of the pressures were scary low. I put some soft felt filler wads under the TSS shot to get the 1-7/8 oz TSS loads to crimp and that really lowered the pressure. A few of the test loads were just over 1,000 psi and the highest pressure was just over 4,000 psi.Again, that is making a FULL LOAD. If you take 1/4oz steel shot out and put 1/4oz tss in, it will have less pressure because there will be extra space in the load.
If you take a 12g/cc 1 1/4 load and instead put 1 1/4 of 13, 15, or 18 in its place, with no other fillers, the pressure will be lower. If you fill the hull, using a filler wad, the pressures could go up.. if you put 1 1/4 of 15 or 18 in a 1 1/4 12g recipe, it probably wouldnt even burn correctly. There will be such a gap that i bet it squibs.