Might be interesting to chronograph rounds with oil and without.
I have been shooting greased and oiled rounds for a long time now. And I have run them over a chronograph, based on the assumption that increased velocities would mean increased pressures. I have not seen any real indication that there is a difference in velocity between greased and non greased, or oiled and non oiled bullets.
I have fired cartridges lubricated with RCBS water soluble lube, Imperial sizing wax, Johnson Paste Wax, Hornady One shot, Lee sizing lube, Lubriplate AA130, Lubriplate 105, rifle grease, axle grease, 10W-30 oil, pull wax, Mink shoe oil, Vaseline, hair gels. Unlike industrial/automotive oils and greases, hair gels don't have nasty additives and wash off easily. Industrial/automotive products are not intended for contact with skin, if you really look at them. Hair gels are combinations of Vaseline (petroleum jelly) and lanolin. Hair gels are semi hard, easy to apply. I do believe that heavily greased bullets do reduce jacket fouling. After firing, my cases are perfectly fireformed to the chamber and stress free. Absolutely no sidewall stretch at all. I also detect sticky bolt lift earlier in developing loads. When I get home, I size the cases as they came out of the chamber so these hair gels are quite lubricative.
These rounds were fired as sighting shots, to zero rifle
30-06 M98 Match Rifle 26" 1-10 Wilson Barrel
Bullets and barrel grease free.
168 gr Nosler Match
47.0 IMR 4895 thrown lot L7926 LC53 WLR (brass) OAL 3.30"
13 Aug 2014 T = 80 °F
Ave Vel = 2619
Std Dev = 29
ES = 72
High = 2644
Low = 2572
Number rounds= 5
I subsequently shot a group which the bullets were not greased, but there was most certainly some grease residue left in the chamber from previous rounds.
168 gr Nosler Match
47.0 IMR 4895 thrown lot L7926 FA60 CCI #34 OAL 3.30"
grease in chamber from greased rounds
13 Aug 2014 T = 80 °F
Ave Vel = 2691
Std Dev = 30
ES = 81
High = 2742
Low = 2661
N = 7
Group Size: 9 rounds on target. 89-4X on MR 31 target
Greased bullets before and after firing
Initial rounds gave spurious reading across the chronograph which I wish they could have been true, for my chronograph was providing readings of 3000 fps. Velocities this high would be incredible for this load and bullet. If it had been real, and without pressure signs, the next thing I would have done was test the combination at long range. If the accuracy stayed excellent, if I could get 400 fps more velocity just by greasing the bullet, it would have been my secret. But I suspected instrumentation error and that is what it turned out to be. I moved the chronograph two feet + further from the muzzle and continued with my testing. On previous shooting sessions , when the chronograph was too close to the muzzle, or shooting magnum cartridges, or black powder, gunpowder residue crossed over the screens and created physically impossible velocity readings or displays of “err1”. As an example, I had to move my chronograph out to around 20 -25 yards to get any black powder musket velocities. The amount of powder residue blown out of the musket caused instrumentation error. For this test, I believe a mass of grease, or grease plume, created sensor error. This is why the number of shots on the targets do not correspond with the numbers in the chronograph data.
168 gr Nosler Match
47.0 IMR 4895 thrown lot L7926 FA/LC cases WLR (brass) OAL 3.30"
Greased to case shoulders by dip and twist with Lubriplate AA130
13 Aug 2014 T = 80 °F
Ave Vel = 2650
Std Dev = 16
ES = 46
High = 2675
Low = 2629
N = 8
Shot #5: grease beyond case shoulder, Shot #8 very heavily greased,
Shot #8, “Big Grease” before and after firing
At 100 yards I am of the opinion that the grease on the bullets did not create any difference in accuracy or velocity and I did not observe any pressure indications. I have shot greased bullets at 300 and 600 yards at CMP Talladega, and within the error of my equipment, I can't tell any deterioration of accuracy.
Ran a cold bore test using previous zero's with the same load, at 300 yards
the rest of the ten shot group. No real zero change
had a lot of case neck cracks, or the flinger could have been me
I did develop target loads in my 1911 with oiled cases. I put a drop of oil on each round as it went into the magazine.
M1911 Les Baer Wadcutter
200 LSWC (H&G 68 type)
4.0 grs Bullseye Lot 907 6/20/2005 WLP Brass mixed cases
23-Mar-16 T = 69 °F OAL 1.250" Taper Crimp 0.469"
oiled cases
Ave Vel = 723.3
Std Dev = 9.48
ES = 28.65
High = 741.6
Low = 712.9
N = 10
200 LSWC (H&G 68 type)
4.0 grs Bullseye Lot 919 11/2005 WLP Nickle, mixed cases
8-Jun-15 T = 91 °F OAL 1.250" Taper Crimp 0.469"
oiled cases
Ave Vel = 742.9
Std Dev = 9.89
ES = 33.19
High = 760.6
Low = 727.5
N = 20
200 LSWC (H&G 68 type)
4.0 grs Bullseye Lot 907 6/20/05 WLP, mixed cases
13-Sep-18 T = 75 °F OAL 1.250" Taper Crimp 0.469"
Not oiled
Ave Vel = 715.6
Std Dev = 10.86
ES = 37.6
High = 735.4
Low = 697.8
N = 15
Based on what I saw over the chronograph, switching from one lot of Bullseye to another had more of an affect on velocity than whether the case was oiled or not.