IMR WHITEHOTS

[bugs n bones]

anyone have any experience with them

[bare.hunter]

arent they for 209 primers

[Sabotloader]

anyone have any experience with them

IMR White Hots are the same thing as the regular Hodgdon T7 pellets except they are not died black.  T7 powder in its' native state is white - but it is died black to be a black powder...

[MountainDevil54]

i wouldn't say they are exactly the same as t7 pellets since they shoot slower.

[Sabotloader]

i wouldn't say they are exactly the same as t7 pellets since they shoot slower.

Jon they are exactly the same minus the dye - made in the same place...

You realize there are T7 mag pellets also correct?

[MountainDevil54]

i realize they have mag pellets as i have a couple boxes of them. They shoot slower than the regular t7 pellets in which you have to use 3 for a mag load. They shoot a great deal slower than regular t7 pellets though. Probably why its a reduced crud ring. I know i chrono'd all the pellets i got for testing, just have to find that info now.

[MountainDevil54]

Okay I was able to find the info!

IMR Whitehots
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 patched 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.

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T7 Pellets
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.

[Sabotloader]

I would speculate that you got some bad White Hots... maybe not bad but probably have absorbed some moisture - good reason not to use pellets...

Most other people are getting near identical velocities with fresh pellets.

Sometime when you are bored go through and weigh each pellet in a box... it could rock your world and easily explain the velocity variance..

[MountainDevil54]

highly doubt it, overall i got 8 packages of them and they were the same when ever i'd do the testing.

When I tested the pellets i had already gone through and weighed multiple pellets from one package to the next. 33.2 grains by weight is what i normally came up with. They are extremely consistent in weight.

If you go to the powerbelt bullets ballistics chart you will find a big different between 100gr T7 pellets and 100gr IMR Whitehots.

250gr Powerbelt aerolite - 100gr IMR Whitehots = 1,648 FPS @ muzzle
250gr Powerbelt aerolite - 100gr T7 pellets = 1,831 FPS @ Muzzle

This IMO is why the Whitehots shoot a good deal cleaner than T7 pellets, they are reduced to be milder.

[bugs n bones]

Good to know...... I just bought 777 magnum pellets to try 2 of those pellets in my new bighorn