vaalpens
Member
- Joined
- Aug 14, 2014
- Messages
- 2,618
It has been a while now where I have tried to find a more accurate (smaller grouping) load for my SIG P220. I always try to better my previous best grouping load for a particular gun, but for a while I have not seen any improvement with my P220. It could be the me, gun or load, but I decided to keep on trying.
About a week ago I saw Roze had some 45ACP Zero 185gr JHP bullets available, so I ordered 1000 of them. Since then they have been sold out again.
The plan is to use this bullet to see if I can get some improvement on my accuracy. This bullet is known for it's accuracy, so at least I am removing one of the variables.
Yesterday I loaded a set of test loads, just to get a feel and see what my baseline is. I did not see any eye opening accuracy yet, but did see very consistent groupings, which is probably more attributed to the quality bullet. In another post I indicated that weather was an issue, so things were not as perfect as it could be. You will see with the last two loads that the chrono started acting up, which was due to the weather.
I now have a baseline to start from, and will start planning my future loads.
Some of you will say that my loads are a bit on the low powder side, which is true, but I planned the first load using this article https://www.shootingtimes.com/editorial/loads-for-the-bullseye-shooter/99418, and validating it against the Hodgdon load data.
All these loads performed flawlessly with no failures. These are really soft to shoot, especially with the heavier P220.
Following are my test results:
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.4gr, FED150
Average: 653
ES: 26
SD: 9.8
Force: 175
PF: 120
Velocities: 669, 648, 654, 655, 643
Grouping @ 15yd: 1.09"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.5gr, FED150
Average: 665
ES: 40
SD: 17
Force: 182
PF: 123
Velocities: 674, 687, 647, 649, 669
Grouping @ 15yd: 0.96"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.6gr, FED150
Average: 676
ES: 75
SD: 28.3
Force: 188
PF: 125
Velocities: 724, 668, 649, 677, 666
Grouping @ 15yd: 1.02"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.7gr, FED150
Average: 687
ES: 25
SD: 11.4
Force: 194
PF: 127
Velocities: 696, 703, 678, 678, 682
Grouping @ 15yd: 0.95"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.8gr, FED150
Average:
ES: 0
SD:
Force:
PF:
Velocities: , , , ,
Grouping @ 15yd: 1.52"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.9gr, FED150
Average: 703
ES: 16
SD: 11.3
Force: 203
PF: 130
Velocities: , , , 711, 695
Grouping @ 15yd: 1.02"
Test Date: 07/04/2022
About a week ago I saw Roze had some 45ACP Zero 185gr JHP bullets available, so I ordered 1000 of them. Since then they have been sold out again.
The plan is to use this bullet to see if I can get some improvement on my accuracy. This bullet is known for it's accuracy, so at least I am removing one of the variables.
Yesterday I loaded a set of test loads, just to get a feel and see what my baseline is. I did not see any eye opening accuracy yet, but did see very consistent groupings, which is probably more attributed to the quality bullet. In another post I indicated that weather was an issue, so things were not as perfect as it could be. You will see with the last two loads that the chrono started acting up, which was due to the weather.
I now have a baseline to start from, and will start planning my future loads.
Some of you will say that my loads are a bit on the low powder side, which is true, but I planned the first load using this article https://www.shootingtimes.com/editorial/loads-for-the-bullseye-shooter/99418, and validating it against the Hodgdon load data.
All these loads performed flawlessly with no failures. These are really soft to shoot, especially with the heavier P220.
Following are my test results:
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.4gr, FED150
Average: 653
ES: 26
SD: 9.8
Force: 175
PF: 120
Velocities: 669, 648, 654, 655, 643
Grouping @ 15yd: 1.09"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.5gr, FED150
Average: 665
ES: 40
SD: 17
Force: 182
PF: 123
Velocities: 674, 687, 647, 649, 669
Grouping @ 15yd: 0.96"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.6gr, FED150
Average: 676
ES: 75
SD: 28.3
Force: 188
PF: 125
Velocities: 724, 668, 649, 677, 666
Grouping @ 15yd: 1.02"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.7gr, FED150
Average: 687
ES: 25
SD: 11.4
Force: 194
PF: 127
Velocities: 696, 703, 678, 678, 682
Grouping @ 15yd: 0.95"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.8gr, FED150
Average:
ES: 0
SD:
Force:
PF:
Velocities: , , , ,
Grouping @ 15yd: 1.52"
Test Date: 07/04/2022
45acp, P220, 4.4"
Case: Winchester
COL: 1.200"
Zero, 185gr, JHP, TiteGroup, 4.9gr, FED150
Average: 703
ES: 16
SD: 11.3
Force: 203
PF: 130
Velocities: , , , 711, 695
Grouping @ 15yd: 1.02"
Test Date: 07/04/2022