Ok, so I went out to Elm Fork today to do a little test run.
Up to this point all I had run though my SIG556 was 55gr ammo.
Not happy with the grouping of the 55gr stuff, with the faster twist rate of my rifle, I thought I would try some of the heavier stuff and see what happened.
The goal of today's trip to the range was not to sight in the new scope but to find which load would group best.
Once I make a determination I will buy some more of that ammo, sight in the new scope and that will be the load I use from here on out.
Each target was at 50 yrds and has 20 rounds though it.
Rifle:
SIG556 SWAT Patrol
16" Barrell
1:7 Twist Rate
Optics:
Vortex Diamondback BDC 4-12X40
Target 1
American Eagle XM855
5.56mm
62gr Green Tip FMJ BT
Target 2
Prvi
.223
69gr HP BT Match
Target 3
Hornady TAP-FPD
#80268
.223
75gr HP BT
Target 4
Fiocchi
#223MKC
.223
69gr Sierra Match King HP BT
Target 5
Fiocchi
#223MKD
.223
77gr Sierra Match King HP BT
Target 6
BVAC
5.56 mm
75gr Lake City Tactical HP BT
AMM-239 at Cheaper Than Dirt
Target 7
BVAC
5.56mm
62gr Pointed Soft Point
AMM-277 at Cheaper Than Dirt
Target 8
.223
62gr FMJ
AMM-280 at Cheaper Than Dirt
Target 9
BVAC
.223
64gr Pointed Soft Point Bonded
AMM-279 at Cheaper Than Dirt
Target 10
BVAC
.223
64gr Pointed Soft Point
Target 11
BVAC
.223
69gr Sierra Match King HP BT
AMM-271 at Cheaper Than Dirt
Up to this point all I had run though my SIG556 was 55gr ammo.
Not happy with the grouping of the 55gr stuff, with the faster twist rate of my rifle, I thought I would try some of the heavier stuff and see what happened.
The goal of today's trip to the range was not to sight in the new scope but to find which load would group best.
Once I make a determination I will buy some more of that ammo, sight in the new scope and that will be the load I use from here on out.
Each target was at 50 yrds and has 20 rounds though it.
Rifle:
SIG556 SWAT Patrol
16" Barrell
1:7 Twist Rate
Optics:
Vortex Diamondback BDC 4-12X40
Target 1
American Eagle XM855
5.56mm
62gr Green Tip FMJ BT
Target 2
Prvi
.223
69gr HP BT Match
Target 3
Hornady TAP-FPD
#80268
.223
75gr HP BT
Target 4
Fiocchi
#223MKC
.223
69gr Sierra Match King HP BT
Target 5
Fiocchi
#223MKD
.223
77gr Sierra Match King HP BT
Target 6
BVAC
5.56 mm
75gr Lake City Tactical HP BT
AMM-239 at Cheaper Than Dirt
Target 7
BVAC
5.56mm
62gr Pointed Soft Point
AMM-277 at Cheaper Than Dirt
Target 8
.223
62gr FMJ
AMM-280 at Cheaper Than Dirt
Target 9
BVAC
.223
64gr Pointed Soft Point Bonded
AMM-279 at Cheaper Than Dirt
Target 10
BVAC
.223
64gr Pointed Soft Point
Target 11
BVAC
.223
69gr Sierra Match King HP BT
AMM-271 at Cheaper Than Dirt