|
Joined: Jul 2023
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Jul 2023
Posts: 48 |
I have a 6x6.8 wildcat (24 Varminter). Has anyone tried Blue Dot to fireform brass? When using Blue Dot in rifle cases, how do you figure a starting charge?
|
|
|
|
Joined: Aug 2010
Posts: 48,264 Likes: 30
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Aug 2010
Posts: 48,264 Likes: 30 |
Funny you call it a "24 varminter". Last I heard, it was called a 6 WOA. ??
I try to stick with the basics, they do so well. Nothing fancy mind you, just plain jane will get it done with style. You want to see an animal drop right now? Shoot him in the ear hole. BSA MAGA
|
|
|
|
Joined: Apr 2004
Posts: 42,924 Likes: 13
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,924 Likes: 13 |
1. Fill to top of case, scrap off overage.... weight charge....
2. multiply that amount x 50%.. that is your max load, but still work up.... BUT stop here.
3. multiply max weight of Blue Dot full to top.... multiply that by 20%... that is your starting charge.
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
|
|
|
|
Joined: Oct 2002
Posts: 13,499 Likes: 4
Campfire Outfitter
|
Campfire Outfitter
Joined: Oct 2002
Posts: 13,499 Likes: 4 |
Meaning half of case capacity weighed (case filled with Blue Dot to the top and struck level?) is max and 20% of case capacity is minimum. So my read is if the case holds 30.0 grains then 15.0 grains is max? Minimum would be 6.0 grains?
Dog I rescued in January
|
|
|
|
Joined: Jul 2023
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Jul 2023
Posts: 48 |
1. Fill to top of case, scrap off overage.... weight charge....
2. multiply that amount x 50%.. that is your max load, but still work up.... BUT stop here.
3. multiply max weight of Blue Dot full to top.... multiply that by 20%... that is your starting charge. Thanks Seafire! I was going to PM you on this but I don't have the post count to enable that feature.
|
|
|
|
Joined: Jun 2005
Posts: 2,254 Likes: 5
Campfire Regular
|
Campfire Regular
Joined: Jun 2005
Posts: 2,254 Likes: 5 |
Don't sweat it, you know way more about it than BSA does 😉 Welcome to the Campfire 🔥
Too close for irons, switching to scope...
|
|
|
|
Joined: Apr 2004
Posts: 42,924 Likes: 13
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,924 Likes: 13 |
1. Fill to top of case, scrap off overage.... weight charge....
2. multiply that amount x 50%.. that is your max load, but still work up.... BUT stop here.
3. multiply max weight of Blue Dot full to top.... multiply that by 20%... that is your starting charge. Thanks Seafire! I was going to PM you on this but I don't have the post count to enable that feature. Then just post it here....its not like most of this Blue Dot load stuff hasn't been posted a zillion times...for a LOT of different cartridges.
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
|
|
|
|
Joined: Apr 2004
Posts: 42,924 Likes: 13
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,924 Likes: 13 |
Meaning half of case capacity weighed (case filled with Blue Dot to the top and struck level?) is max and 20% of case capacity is minimum. So my read is if the case holds 30.0 grains then 15.0 grains is max? Minimum would be 6.0 grains? Yes, but in the 223, the max is less than 30 grains... 14.5 grains is max I use with a 40 grain bullet 14 grains is max for a 50 grain bullet. 13.5 is max for a 52 gr bullet 13 for a 53 grainer 12.5 for a 55 grainer 12 for a 60 grainer. If you check on line here on the campfire, or just on Google search, you'll find Blue Dot data for a lot of different cartridge data I have developed and tested.
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
|
|
|
|
Joined: Oct 2002
Posts: 13,499 Likes: 4
Campfire Outfitter
|
Campfire Outfitter
Joined: Oct 2002
Posts: 13,499 Likes: 4 |
I have run a lot of it, was just clarifying for Halvin.
Dog I rescued in January
|
|
|
|
Joined: Apr 2004
Posts: 42,924 Likes: 13
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,924 Likes: 13 |
I have run a lot of it, was just clarifying for Halvin. gotcha...
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
|
|
|
|
Joined: Jul 2023
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Jul 2023
Posts: 48 |
Case capacity was 27.4 grains. Figured the low at 5.4 grains and the high at 13 on my unformed brass. Settled on ten grains for fireforming although my starting point at six worked just fine. Neat loads. For future use I saved a sight in setting for them. Topping them off with 55 gr Sierra BlitzKings.
Last edited by Halvin; 08/06/23.
|
|
|
|
Joined: Aug 2021
Posts: 1,671 Likes: 3
Campfire Regular
|
Campfire Regular
Joined: Aug 2021
Posts: 1,671 Likes: 3 |
What projectile are you going to run once fireformed and what powder?
|
|
|
|
Joined: Jul 2023
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Jul 2023
Posts: 48 |
The same 55 gr Sierra Blitzkings over H335.
|
|
|
|
Joined: Jul 2023
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Jul 2023
Posts: 48 |
Ten grains of Blue Dot under an unknown 85gr factory second clocked 1765 FPS. Must be on the edge of stabilization because they keyhole once they hit a milk jub filled with water.
|
|
|
|
Joined: Apr 2004
Posts: 42,924 Likes: 13
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,924 Likes: 13 |
what was the twist rate on your barrel??
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
|
|
|
|
Joined: Jul 2023
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Jul 2023
Posts: 48 |
what was the twist rate on your barrel?? 1 in 8.
|
|
|
|
Joined: Jul 2023
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Jul 2023
Posts: 48 |
SSA Case capacity was 27.4 grains. Figured the low at 5.4 grains and the high at 13 on my unformed brass. Settled on ten grains for fireforming although my starting point at six worked just fine. Neat loads. For future use I saved a sight in setting for them. Topping them off with 55 gr Sierra BlitzKings. After fireforming, SSA brass case capacity is 28.3 grains & Hornady brass is 26.4 grains.
|
|
|
|
Joined: Jul 2023
Posts: 48
Campfire Greenhorn
|
OP
Campfire Greenhorn
Joined: Jul 2023
Posts: 48 |
24 Varminter- Fireformed SSA brass, CCI450 Magnum SR Primers, 75gr Speer HP, Blue Dot
grains FPS
10.0 1,863 10.5 1,985 11.0 2,034 11.5 2,106 12.1 2,185 12.6 2,202 13.0 2,246 13.4 2,297 13.5 2,336 average (12 shot production string running drops from 13.4 to 13.6) 14.0 2,371
The 13.5 gr loading punched into the fifth milk jug and retained 47.7 grains in a very well mushroomed form. Interesting compared to full bore loads that stop in 3 half gallon milk jugs and leave the bullet in pieces.
Last edited by Halvin; 12/25/23.
|
|
|
|
Joined: Apr 2004
Posts: 42,924 Likes: 13
Campfire 'Bwana
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,924 Likes: 13 |
Thanks for the info Halvin. Slower speeds punch thru more than fast bullets a lot of times, and it takes a lot for people to understand that.
I've got some steel plates that I shot with a 55 grain bullet out of a 223 with 13 grains of Blue Dot, AFTER I shot them with the same bullet weight with another powder at 3150 fps ( regular military load MVs).
the military loads hit the 3/8 inch steel plate and splattered, just barely making a dent in them.
the Same Bullets were Hornady 55 grain SPs and FMJs, were fired at the targets at 100/ meters. 13 grains of Blue Dot gave an MV 500 fps Slower, yet each shot punched right thru the same steel plates, that the military standard MV of 3150 fps, just hit the plates and splattered.
everyone seems to think higher velocity is the answer, but it depends upon the bullet and the resistance it gets from the media it is hitting.
Speed sells and lower velocity doesn't....yet lower velocity ammo works when higher speed velocity won't or even just plain fails.
Load your bullets to the velocity, that works best for your target work and desired results...and what the bullet's parameters are....
but most people will think you are nuts and think the opposite, although few will admit, they've never even tried it...
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
|
|
|
|
523 members (1_deuce, 17CalFan, 1234, 1936M71, 10gaugeman, 12344mag, 52 invisible),
1,754
guests, and
1,119
robots. |
Key:
Admin,
Global Mod,
Mod
|
|
Forums81
Topics1,194,105
Posts18,522,468
Members74,026
|
Most Online11,491 Jul 7th, 2023
|
|
|
|