WB's snake story reminded me of 45 ACP snake loads

Last month I was thinking about working up a snake load for the 45 ACP's I have, 1- glock , 2- 1911's.
Looked at Ebay and the RCBS dies ran $200+ if you can find them, not good.
Checked around and found some were using 45 Win Mag brass run thru a 40 SW die ( to downsize -to fit acp chamber). I tried this but the 45 Win brass would not size evenly ( middle pic) you can see the scratches on the brass.
I tried Gary's 410 GNR sizing die and worked perfectly sizing was very even around brass ( right pic)
Game Plan:
45 Win Mag brass
Powder 231- 6.5 gr
Shot- #9 - about 150 gr, fill to top
gas checks- (2) 375 cal
1) Run 45 Win Brass in 410 GNR sizer die ( die should resize about 1/2" down , only trying to fit the 45 acp chamber.
2) powder load 6.5 gr 231
3) cover powder with (1)- 375 caliber gascheck(flat side facing up)
4) load #8 or #9 shot to top of case, about 150 gr
5) cover with (1) 375 gascheck (flatside up), crimp with 410 GNR die , you can see the amount of crimp in the right picture, it holds everything in place tightly and will work both the glock slide and the 1911 slides perfectly.
Runs about 900 fps with a decent pattern at 7 yards.