IMR White Hots - Oil VS Non Oiled barrel
04-16-2011 | 10:53 AM
#1
Thread Starter
Banned
Joined: Dec 2008
Posts: 9,186
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From: Boncarbo,Colorado
IMR White Hots - Oil VS Non Oiled barrel
Some of you wanted me to do this test again but with the other subs. So i started with the IMR White Hots today.
First off, im very shocked to see how slow these things are! A 100gr American Pioneer 2f charge is actually faster
I'll get the info up once i take a break and cool down. Its a scorcher out today with very little wind.
First off, im very shocked to see how slow these things are! A 100gr American Pioneer 2f charge is actually faster
I'll get the info up once i take a break and cool down. Its a scorcher out today with very little wind.
Last edited by MountainDevil54; 04-16-2011 at 11:04 AM.
04-16-2011 | 03:03 PM
#2
Nontypical Buck
Joined: Dec 2009
Posts: 2,496
Likes: 0
From: Yucca Valley,Ca
Some of you wanted me to do this test again but with the other subs. So i started with the IMR White Hots today.
First off, im very shocked to see how slow these things are! A 100gr American Pioneer 2f charge is actually faster
-----------------
I used the CVA Accura V2, 245gr HP Powerbelts, 100gr IMR White Hots, Lightly lubed the barrel with Birchwood Casey Barricade, followed up with One dry patch and used both sides to mop up excess oil. Barrel was cleaned, oiled, dry patches between each shot.
Shots One through Three are listed below.
1701
1695
1690
Pretty impressive spread wise, but Velocity was a lot lower than what i thought it should be.
Cleaning the V2 again, i followed up with Birchwood Casey GUN SCRUBBER to fully clean the bore free of any wetness and oil that may have been in there.
Loaded up again with the same load i previously shot and here are the recorded numbers:
1660
1681
1671
21 FPS Spread. Not bad, but still not impressed with the velocity.
One odd deal i did run into with the non oiled barrel is the crud ring. Even though it was free of oil, the crud ring was much stronger and baked onto the Stainless Steel much harder and requires 6 pumps total of Birchwood Casey muzzle magic foam, and 3 patches. This is an area i want to experiment with more and see why the crud ring is worse with an oil free bore.
I will be chrono testing the T7 pellets next time out and see how they react to the same tests.
First off, im very shocked to see how slow these things are! A 100gr American Pioneer 2f charge is actually faster
-----------------
I used the CVA Accura V2, 245gr HP Powerbelts, 100gr IMR White Hots, Lightly lubed the barrel with Birchwood Casey Barricade, followed up with One dry patch and used both sides to mop up excess oil. Barrel was cleaned, oiled, dry patches between each shot.
Shots One through Three are listed below.
1701
1695
1690
Pretty impressive spread wise, but Velocity was a lot lower than what i thought it should be.
Cleaning the V2 again, i followed up with Birchwood Casey GUN SCRUBBER to fully clean the bore free of any wetness and oil that may have been in there.
Loaded up again with the same load i previously shot and here are the recorded numbers:
1660
1681
1671
21 FPS Spread. Not bad, but still not impressed with the velocity.
One odd deal i did run into with the non oiled barrel is the crud ring. Even though it was free of oil, the crud ring was much stronger and baked onto the Stainless Steel much harder and requires 6 pumps total of Birchwood Casey muzzle magic foam, and 3 patches. This is an area i want to experiment with more and see why the crud ring is worse with an oil free bore.
I will be chrono testing the T7 pellets next time out and see how they react to the same tests.
04-17-2011 | 12:09 PM
#3
Thread Starter
Banned
Joined: Dec 2008
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From: Boncarbo,Colorado
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.
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.
04-17-2011 | 01:59 PM
#4
Boone & Crockett
Joined: Aug 2004
Posts: 11,703
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From: Idaho
Wait... my error...
Two tablets of T7 pellets is equally to about 85 grains of T7 loose, so in reall life the velocity would be down with the equivelent of loose BP or any of the Pyro's... Pyro 'P' might be somewhat hotter because of the size of the granuals.
You would see a significant velocity increase with loose T7
Two tablets of T7 pellets is equally to about 85 grains of T7 loose, so in reall life the velocity would be down with the equivelent of loose BP or any of the Pyro's... Pyro 'P' might be somewhat hotter because of the size of the granuals.
You would see a significant velocity increase with loose T7
Last edited by sabotloader; 04-17-2011 at 03:37 PM.
