So I've been on the prowl for Starline 45 Super brass for a while. Managed to snag some this morning off their website. Now, what exactly am I getting myself into? I already load 45's so no issues there and it'll all be shot out of an HK USP. I was browsing load data on Hodgdon's website and it all seemed very mild. Where are people getting their data for some truly full power 45 Super stuff?

Thanks in advance!

I can't help but fwiw 6gr unique under a 255gr swc gets me 950fps in a 5" gun. It's not even +p but might be a good starting point.

It's not in this list but I'm a fan of AA#7, or shooters world major.

Aa#5 is ok for 185gr loads, can get spikey with heavier bullets when pushing the limits.

I just scour other forums for data and work up. Definitely use a chronograph.

-Factory .45 Super Specs:
185gr @ 1300fps (694 ft-lbs)
200gr @ 1200fps (639 ft-lbs)
230gr @ 1100fps (618 ft-lbs)
28,000 PSI.

-Factory .460 Rowland Specs (approximate):
185gr @ 1560fps (1000 ft-lbs)
200gr @ 1450fps (933 ft-lbs)
230gr @ 1340fps (917 ft-lbs)
~48,000 PSI (40,000 CUP)

185s:
185gr XTP, 12.0gr Power Pistol @ 1.240":1,420 fps
185gr FMJ, 12.0 g. 800x @ 1.21 oal 1460 fps av. from 4.2 L.W. G30 barrel. 875 ft-lb
185gr XTP, 14.5gr 800x @ 1.250": 1,470 fps (10 fps ES!)
185gr XTP, 14.8gr 800x @ 1.250": 1,535 fps (1 FPS ES!)
185gr XTP, 13.0 gr. 800x 1.27 oal.@ 1555 fps. av. 35es.(6.6” barrel)
185gr XTP, 15.0gr 800x @ 1.260":1,568 fps(1,010 ft-lbs)
185gr FMJ, 15.0 800x @ 1.250: 1610fps (1065 ft-lbs, 6.6” barrel)
185gr XTP, 14.0 gr. 800x @ 1.28 oal 1658 fps (1129ft-lbs) (6.6” barrel)

200s:
10.5gr Power Pistol: 1209 fps / 649 ft-lbs (4.6” Aftermarket Barrel, No compensator)
10.8gr Power Pistol: 1241 fps / 683 ft-lbs (4.6” Aftermarket Barrel, No compensator)
11.0gr Power Pistol: 1278 fps / 725 ft-lbs(4.6” Aftermarket Barrel, No compensator)
11.3gr Power Pistol, 200gr XTP @ 1.260": 1351 fps (810+ ft-lbs)
200gr XTP, 11.5gr Longshot @ 1.250":1,393 fps
200gr XTP, 13.5gr 800x @ 1.250": 1,418 fps (4 fps ES!)
200gr XTP, 14.0gr 800x @ 1.260": 1,455 fps (17 fps ES)
200gr XTP, 13.8gr 800x @ 1.250": 1,471 fps (63 fps ES) 961 ft-lbs
200gr XTP, 14.1gr 800x @ 1.275: 1570fps (1095 ft-lbs, 6.61” barrel)
200gr XTP, 14.9gr 800X @ 1.275: 1666 fps (6.6” barrel, 1232 ft-lbs)

230s:
230gr Hornady XTP, 10.0gr Power Pistol @ 1.240":1,201 fps(7 fps ES!)
230gr FMJ, 9.8gr Longshot @ 1.250": 1,229 fps avg (37 fps ES)
230gr XTP, 12.0gr 800x @ 1.250':1,298 fps(860 ft-lbs)
230 gr XTP, 12 grs 800x = 1395 fps/995 ft lbs!
230gr Hornady XTP Federal 150 1.220" HS-7 10.5gr 924fps
230gr Hornady XTP Federal 150 1.220" Alliant Power Pistol 8.0gr 933fps
230gr Hornady XTP Federal 150 1.220" AA-7 11.0gr 942fps
230gr , West Coast Plated Round Nose R-P(UMC) 45ACP Winchester LP 1.240" 800X 8.1gr 952fps
230gr Hornady XTP Federal 150 1.220" Viht N350 7.8gr 963fps
230gr , West Coast Plated Round Nose R-P(UMC) 45ACP Winchester LP 1.240" 800X 8.6gr 974fps
230gr , West Coast Plated Round Nose Starline 45 Super Federal 150 1.240" Blue Dot 10.2gr 1000fps
230gr. Raineer Winchester 45ACP Federal 150 Blue Dot 10.4gr 1004fps
230gr , West Coast Plated Round Nose R-P(UMC) 45ACP Winchester LP 1.240" 800X 9.1gr 1015fps
230 grain ball 1.252" Alliant Power Pistol 8.4gr 1031fps
230gr. Raineer Winchester 45ACP Federal 150 Blue Dot 11.0gr 1035fps
230gr Hornady XTP Federal 150 1.220" Viht N350 8.8gr 1040fps 553 FP
230gr , West Coast Plated Round Nose Starline 45 Super Federal 150 1.240" Blue Dot 10.6gr 1042fps
230gr Hornady XTP Federal 150 1.20" AA-7 11.5gr 1050fps
230gr Viht N330 7.1gr 1050fps
230gr , West Coast Plated Round Nose Starline 45 Super Federal 150 1.220" AA-7 13.0gr 1088fps
230gr WSF 8.0gr 1100fps
230gr 800X 9.6gr 1100fps+
230gr Blue Dot 11.0gr 1100fps+
230gr AA-7 13.5gr 1100fps+
230gr Hornady XTP Federal 150 1.220" Alliant Power Pistol 9.4gr 1104fps
230gr Hornady XTP Federal 150 1.220" AA-7 13.5gr 1108fps
230gr Hornady XTP Federal 150 1.220" HS-7 12.3gr 1110fps 630 FP
230gr , West Coast Plated Round Nose Starline 45 Super Federal 150 1.240" Blue Dot 11.0gr 1111fps
230gr , West Coast Plated Round Nose R-P(UMC) 45ACP Winchester LP 1.240" 800X 9.6gr 1112fps
230gr. RNL Meister Federal 150 Alliant Power Pistol 8.6gr 1128fps
230gr. RNL Meister Federal 150 Alliant Power Pistol 9.0gr 1138fps
230gr , West Coast Plated Round Nose Starline 45 Super Federal 150 1.220" AA-7 13.5gr 1168fps
230gr Hornady XTP Federal 150 1.20" AA-7 12.5gr 1180fps
230 gr LRN (Lyman452374) 1.275" N105 12.3gr 1200fps
230gr. RNL Meister Federal 150 Alliant Power Pistol 9.6gr 1201fps
230 gr LRN (Lyman452374) 1.275" N105 12.4gr 1231fps

250s:
250gr XTP, 9.0gr Power Pistol @ 1.190":1,128 fps(38 fps ES)
250gr XTP, 9.0gr Longshot @ 1.190":1,164 fps(22 fps ES)
250gr Speer Gold Dot, 9.8gr 800x @ 1.215":1,164 fps(16 fps ES) That's 752 ft-lbs
250gr Hornady XTP, 10.5gr 800x @ 1.190": 1,206 fps (17fps ES) 807 ft-lbs
250gr XTP, 9.8gr Longshot @ 1.220":1,207 AVG - 13.97 ES - 9.89 SD
250gr XTP, 10.8gr 800X @ 1.190":1,256 fps(6 fps ES!)876 ft-lbs!
250gr XTP, 10.5gr 800X @ 1.17”: 1258fps (3 fps SD)
250gr XTP, 11.0gr 800x @ 1.190":1,266 fps(5 fps ES!) That's 890 ft-lbs
250 gr RNFP, 11 grs 800x = 1301 fps/939 ft lbs.
250gr XTP, 11.4gr 800x @ 1.265: 1315fps (960 ft-;bs, 6.6” barrel)
250gr XTP, 12.4gr 800x @ 1.265: 1446fps (6.6” barrel, 1160ft-lbs)

^^ Some of that load data is mine.  I've loaded for it and it's a great option, you can push it perform like a 460 Rowland but at that point you need to be running a comp and make sure you have very good case support.  Of course you don't have to load it that high, some people load it to approx what a 45 ACP "+P+" would be like.  Anyways, it's a cool cartridge for sure, saw that Starline had some more brass in as well.