RMR offers THR memebrs a 5% discount and has free shipping
https://www.rmrbullets.com/shop/bullets/pistol/45-452/45-200-gr-rmr-plated-round-nose-bullets-new/
These are 200 RNs plated. $66/500 -5%
A SWC will cut cleaner holes in targets, BUT, some .45s feed them fine and some don't care for them.
When I shoot SWCs in .45 I have had good results with the ones from Missouri Bullet (for target use the BHN 12 (softer) ones are better in my gun, also had good results with the ones from Acme which come in cool wood boxes.
If you haven't loaded/shot SWCs in your pistol I would by a smaller batch than 500 to try just in case it does not want to feed them.
This was a nice mild load with 200 SWCs and AA2 (AA2 meters great and also works well in .45)
WIN LP, mixed range brass, 5" 1911, all charges as thrown after setting measure
http://www.ilrc.ucf.edu/powders/sample_detail.php?powder_id=184
(more pictures of powder here, can't tell for sure by looking at pictures, but generally the smaller the grains of powder the better it will meter)
Something that does not meter as well for example
http://www.ilrc.ucf.edu/powders/sample_detail.php?powder_id=122
String: 6
Date: 4/23/2017
Time: 11:56:43 AM
Grains: 200
Hi Vel: 867
Low Vel: 843
Ave Vel: 849
Ext Spread: 24
Std Dev: 10
.45 ACME 200gr 5.1 AA2 OAl 1.244
Velocity Power Factor Ft/Lbs
843 168.6 315.563
843 168.6 315.563
843 168.6 315.563
852 170.4 322.337
867 173.4 333.787
.2 gr more
String: 7
Date: 4/23/2017
Time: 11:58:22 AM
Grains: 200
Hi Vel: 885
Low Vel: 850
Ave Vel: 872
Ext Spread: 35
Std Dev: 13
.45 ACME 200gr 5.3 AA2 OAl 1.244
Velocity Power Factor Ft/Lbs
879 175.8 343.091
885 177 347.791
868 173.6 334.558
850 170 320.826
879 175.8 343.091
and another .2 gr
String: 1
Date: 4/23/2017
Time: 12:00:08 PM
Grains: 200
Hi Vel: 921
Low Vel: 894
Ave Vel: 904
Ext Spread: 27
Std Dev: 10
.45 ACME 200gr 5.5 .AA2 OAl 1.244
Velocity Power Factor Ft/Lbs
899 179.8 358.881
921 184.2 376.661
906 181.2 364.492
894 178.8 354.901
902 180.4 361.281
WIN LP, mixed range brass, 5" 1911, all charges as thrown after setting measure
4.7gr HP38/W231 with a 230 makes a nice soft shooting load
http://www.ilrc.ucf.edu/powders/sample_detail.php?powder_id=141
String: 7
Date: 5/15/2016
Time: 10:18:19 AM
Grains: 230
Hi Vel: 733
Low Vel: 689
Ave Vel: 702
Ext Spread: 44
Std Dev: 17
45 4.7 HP38 RMR 230 1.21
Velocity Power Factor Ft/Lbs
733 168.59 274.37
697 160.31 248.082
698 160.54 248.794
693 159.39 245.243
689 158.47 242.42