While the IMR's are slower, they are more consistent on an oiled bore and non oiled bore than the Triple 7 Pellets.
Triple 7 Pellets, 100gr charge, winchester W209 primers, 245gr HP Powerbelt.
Oiled bore:
1775
1793
1792
Avg FPS : 1787 with a 18 FPS spread
Non Oiled bore:
1844
1808
1753
Avg FPS : 1802 with a spread of 91 FPS.
That really surprised the heck out to me to be honest.
Next up are Pyrodex Pellets, 100gr charge.
Afterwards, i will test 150gr pellet mag loads with both T7, IMR, Pyrodex Pellets and see how consistent these are with the Oil VS No Oil in the bore.