These are examples, not loading information:
Cartridge : .38 Super Auto +P (SAAMI)
Bullet : .355, 124, Hornady HP/XTP 35571
Useable Case Capaci: 12.942 grain H2O = 0.840 cm³
Cartridge O.A.L. L6: 1.280 inch = 32.51 mm
Barrel Length : 5.0 inch = 127.0 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 38500 psi, or 265 MPa
or a maximum loading ratio or filling of 100 %
USE ONLY FOR COMPARISON !
Code:
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Alliant POWER PISTOL 94.0 8.9 0.58 1475 94.7 38500 7595 0.437 !DANGEROUS LOAD-DO NOT USE!
Accurate No.7 88.6 11.4 0.74 1467 85.7 38500 7673 0.440 !DANGEROUS LOAD-DO NOT USE!
Accurate No.5 70.3 9.5 0.61 1440 92.7 38500 7073 0.439 !DANGEROUS LOAD-DO NOT USE!
Accurate No.9 96.5 12.3 0.80 1439 78.6 38500 7333 0.440 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori 3N37 95.1 8.8 0.57 1423 99.4 38500 6389 0.443 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N350 98.4 8.6 0.55 1415 99.5 38500 6219 0.442 !DANGEROUS LOAD-DO NOT USE!
Hodgdon HS-6 77.0 9.1 0.59 1414 98.3 38500 6381 0.443 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Longshot 73.1 8.8 0.57 1409 99.2 38500 6210 0.444 !DANGEROUS LOAD-DO NOT USE!
Ramshot True Blue 72.4 8.8 0.57 1407 99.2 38500 6183 0.444 !DANGEROUS LOAD-DO NOT USE!
Winchester 540 71.3 8.8 0.57 1407 99.3 38500 6174 0.444 !DANGEROUS LOAD-DO NOT USE!
Alliant UNIQUE 95.7 7.4 0.48 1404 100.0 38500 5842 0.450 !DANGEROUS LOAD-DO NOT USE!
Winchester WAP 78.1 8.1 0.53 1395 100.0 38500 5800 0.444 !DANGEROUS LOAD-DO NOT USE!
Ramshot Silhouette 77.8 8.1 0.52 1394 100.0 38500 5772 0.445 !DANGEROUS LOAD-DO NOT USE!
Alliant BULLSEYE 83.3 6.6 0.43 1394 100.0 38500 5686 0.443 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N340 92.5 7.3 0.47 1366 100.0 38500 5271 0.449 !DANGEROUS LOAD-DO NOT USE!
Accurate No.2 68.0 6.8 0.44 1348 100.0 38500 5179 0.447 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Universal 88.1 6.8 0.44 1346 100.0 38500 5011 0.459 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N330 88.2 6.9 0.44 1343 100.0 38500 4854 0.454 !DANGEROUS LOAD-DO NOT USE!
Alliant HERCO 100.0 7.5 0.48 1343 99.8 32605 5928 0.486 ! Near Maximum !
Vihtavuori 3N38 100.0 9.7 0.63 1325 85.2 30297 6411 0.493
Accurate Solo 1250 93.8 6.7 0.43 1323 100.0 38500 4651 0.453 !DANGEROUS LOAD-DO NOT USE!
Cartridge : 9 mm Luger +P (SAAMI)
Bullet : .355, 124, Hornady HP/XTP 35571
Useable Case Capaci: 9.270 grain H2O = 0.602 cm³
Cartridge O.A.L. L6: 1.169 inch = 29.69 mm
Barrel Length : 5.0 inch = 127.0 mm
Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 38500 psi, or 265 MPa
or a maximum loading ratio or filling of 100 %
USE ONLY FOR COMPARISON !
Code:
Powder type Filling/Loading Ratio Charge Charge Vel. Prop.Burnt P max P muzz B_Time
% Grains Gramm fps % psi psi ms
--------------------------------- -----------------------------------------------------------------
Accurate No.7 98.7 9.1 0.59 1343 80.6 38500 5526 0.453 !DANGEROUS LOAD-DO NOT USE!
Accurate No.5 77.8 7.5 0.49 1321 88.6 38500 5174 0.456 !DANGEROUS LOAD-DO NOT USE!
Hodgdon HS-6 85.5 7.2 0.47 1305 95.7 38500 4771 0.459 !DANGEROUS LOAD-DO NOT USE!
Alliant POWER PISTOL 100.0 6.8 0.44 1304 89.3 34110 5342 0.477 ! Near Maximum !
Hodgdon Longshot 81.2 7.0 0.45 1302 97.2 38500 4675 0.459 !DANGEROUS LOAD-DO NOT USE!
Alliant BULLSEYE 92.7 5.3 0.34 1301 100.0 38500 4378 0.458 !DANGEROUS LOAD-DO NOT USE!
Winchester 540 79.2 7.0 0.45 1301 97.4 38500 4653 0.460 !DANGEROUS LOAD-DO NOT USE!
Ramshot True Blue 80.4 7.0 0.45 1301 97.3 38500 4657 0.460 !DANGEROUS LOAD-DO NOT USE!
Winchester WAP 86.9 6.5 0.42 1297 99.6 38500 4459 0.460 !DANGEROUS LOAD-DO NOT USE!
Ramshot Silhouette 86.6 6.4 0.42 1297 99.7 38500 4443 0.460 !DANGEROUS LOAD-DO NOT USE!
Hodgdon Universal 98.7 5.4 0.35 1263 100.0 38500 3848 0.473 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N330 98.9 5.5 0.36 1262 100.0 38500 3721 0.466 !DANGEROUS LOAD-DO NOT USE!
Vihtavuori 3N37 100.0 6.6 0.43 1252 96.1 32897 4575 0.490 ! Near Maximum !
Alliant UNIQUE 100.0 5.5 0.36 1245 99.8 32755 4314 0.499 ! Near Maximum !
Vihtavuori N340 100.0 5.7 0.37 1245 100.0 35928 3972 0.479 ! Near Maximum !
Accurate No.2 74.5 5.3 0.35 1241 99.4 38500 3903 0.466 !DANGEROUS LOAD-DO NOT USE!
Ramshot Zip 74.0 5.4 0.35 1229 100.0 38500 3499 0.471 !DANGEROUS LOAD-DO NOT USE!
Winchester 231 82.9 5.4 0.35 1229 100.0 38500 3499 0.471 !DANGEROUS LOAD-DO NOT USE!
Hodgdon HP38 81.0 5.3 0.34 1222 100.0 38500 3426 0.472 !DANGEROUS LOAD-DO NOT USE!
Accurate No.9 100.0 9.2 0.59 1209 68.7 30848 4654 0.503
Vihtavuori N350 100.0 6.2 0.40 1207 95.2 30108 4301 0.508
Vihtavuori N320 95.9 4.8 0.31 1204 100.0 38500 3211 0.479 !DANGEROUS LOAD-DO NOT USE!
Accurate Solo 1250 100.0 5.1 0.33 1200 100.0 35024 3434 0.488 ! Near Maximum !
As you can see some powders work better for certain cartridges than others. These tables are both pegged at 38500 Psi and use a 5in barrel.