boxlock wrote:Rsi 66 lists 34 grains of steel, 209a primer and sam1 wad with 1 1/8 @ 10,000 psi, how much more pressure would 1 more grain of powder and the subbibg of a bap wad add ?
activ hull 23/4 with 34 grains and rsi wad with fed 209a primer and 11/8 of shot has published psi of 10900 1520 fps so with b and p wad the pressure would be even higher, subbing band p wads for rsi recipes is like adding at least 2 grains of powder too the rsi recipe's. just by subbing the wad and all else being the same.
activ 23/4(34 grains asteel and rsi wad 11/8 oz of steel shot, win209 primer 1465 fps and 8,300psi published data) if sub the band p wad you end up with the load that chris likes to shoot,but he uses cheddite primer in cheddite hulls.the cheddite primer is close to the old winchester 209 primers for hottness of primer(rsi says that you can sub the cheddite with no problems in there recipes).
fed gold medal 30 grains of asteel, band p 32 wad 11/8 of shot fed209a primer has 11,000 psi. 1377 fps published data
taking that info further rsi 66 same hull as above load but from 34 grains to 30 grains of asteel and has the bandp wad 11/8 version and not the rsi wad which is in use with #66 and has fed209 like above published gold medal load the psi for #66 is 10,000 precision reloadings published data for gold medal and 4 less grains and b and p wad has 11000 psi. thats 1000 psi higher with bandp wad with 4 grains less of asteel . so if put 5 grains on top of that combo that load is going to be hot and a your prized gun will loose some years of use from using that hot load.
you take dog walkers info with cheddite hull/primer with 31 grains csd 118 wad 10,100 psi and swap to fed209a and 4 more grains the results will be the same.
the only time that you will have problems with cheddite primers or winchester primers is when the temps get in teens and windchills are below zero then the powder will not be ignited properly and the velocity's will be alot lower. when it gets super cold i use loads with fed209a primer and asteel powder or the regular 800x loads with win 209 primers both those combo's take me to way below zero without any problems at all.