After finally actually buying some Silhouette and not just thinking about it, I recently tried it with the Speer 124 Gr Gold Dot. The 124 Gr Gold Dot proved very accurate in all three guns, and my EMP can be a little finicky. It hates 115 Gr stuff.
5.7 Grs Silhouette. WSP primer. Loaded @ 1.120 OAL. 102 Degrees. 38% RH.
3" EMP:..Hi=1130..Lo=1010..Avg=1064..ES=120..SD=54
5" S&W Pro 1911:..Hi=1284..Lo=1135..Avg=1202..ES=149..SD=63
16" RRA AR:..Hi=1280..Lo=1241..Avg=1263..ES=39..SD=16
Pretty big ES & SD numbers. A fluke that day? Not particularly good velocity from the EMP either. The 16" barrel calmed the ES & SD down, but still gave so so velocity.
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So I tried N340, which has done very well in the 3" EMP in the past, and still gave good velocity in the AR, although not quite the velocity in the AR as what HS-6 or AA #5 did.
5.7 Grs N340. WSP primer. Loaded @ 1.122 OAL. 104 Degrees. 35% RH.
3" EMP:..Hi=1107..Lo=1071..Avg=1089..ES=36..SD=11
5" S&W Pro 1911:..Hi=1223..Lo=1205..Avg=1212..ES=18..SD=6
16" RRA AR:..Hi=1321..Lo=1302..Avg=1308..ES=19..SD=6
Use these loads at your own risk. Check data and follow it. This is merely an example to show some velocities.