It is now a reality. The very first hammer spring adjuster for the aea challenger platforms.
Today's testing is with the 30cal sl using NSA 61.5 grain .303 slugs.
3200psi
0 turns 800fps
+3 turns 868fps
3500psi
0 turns 732 fps
+3 turns 836 fps
+4 turns 891 fps.
String #1
+3 hammer spring
3500 psi start end 2700psi maybe
9 shots
Low 817 high 881
String #2
Start 3500 psi end at 2700/2800 psi
+4 hammer spring
850 low high 890
5 shots
That's 2.2 ES over 100 fpe.
This is all with the port opened at max. So it looks like it can run the gun from 70 fpe to 108fpe.
Today's testing is with the 30cal sl using NSA 61.5 grain .303 slugs.
3200psi
0 turns 800fps
+3 turns 868fps
3500psi
0 turns 732 fps
+3 turns 836 fps
+4 turns 891 fps.
String #1
+3 hammer spring
3500 psi start end 2700psi maybe
9 shots
Low 817 high 881
String #2
Start 3500 psi end at 2700/2800 psi
+4 hammer spring
850 low high 890
5 shots
That's 2.2 ES over 100 fpe.
This is all with the port opened at max. So it looks like it can run the gun from 70 fpe to 108fpe.