|
|
Joined: Jan 2001
Posts: 21,317
Campfire Ranger
|
Campfire Ranger
Joined: Jan 2001
Posts: 21,317 |
I'm not saying to double charge cases, just that there should be an indication if you do.
As with any round and powder you reload, you need to pay attention to what you are doing, or damage to your gun and/or injury can result.
|
|
|
|
|
Joined: Dec 2002
Posts: 6,924
Campfire Tracker
|
|
Campfire Tracker
Joined: Dec 2002
Posts: 6,924 |
As I recall, the max charges of blue dot will overflow the case moth on the various .308 based rounds. I never would have believed the accuracy of the blue dot loads if I hadn't tried them myself. DO NOT TRY THIS! As a rule of thumb maximum Blue Dot loads in .308 based cases are about 60% of case capacity. Maximum Blue Dot loads in -06 and x57 cases are about 50% of case capacity. GE I think he was trying to say that if you DOUBLE charge the maximum Blue Dot loads in the .308 based cases you will overflow the case mouth, which is true. NEVER fill a bottle-neck case with Blue Dot, seat a bullet, and shoot it, you are asking for some serious troubles... Selmer
Selmer "Daddy, can you sometime maybe please go shoot a water buffalo so we can have that for supper? Please? And can I come along? Does it taste like deer?" - my 3-year old daughter 
|
|
|
|
|
Joined: Jan 2001
Posts: 21,317
Campfire Ranger
|
|
Campfire Ranger
Joined: Jan 2001
Posts: 21,317 |
Thanks for translating 
|
|
|
|
|
Joined: May 2003
Posts: 31,217
Campfire 'Bwana
|
|
Campfire 'Bwana
Joined: May 2003
Posts: 31,217 |
Even the explanation needs an explanation.
When Selmer said, "NEVER fill a bottle-neck case with Blue Dot," he MEANT never fill it FULL of Blue Dot. Some folks might interpret "fill" as "put in the powder." Incorrect, but I've heard it used with that connotation. Slippery stuff, this English.
When properly loaded with Blue Dot, a case will normally be about half full. That being true, the safe procedure is (once again) dispense a weighed charge into the case. Check visually. Immediately seat a bullet.
Cleverly disguised as a responsible adult.
|
|
|
|
|
Joined: Apr 2003
Posts: 11,735
Campfire Outfitter
|
|
Campfire Outfitter
Joined: Apr 2003
Posts: 11,735 |
The only negative I have found with BD loads is the extreme difference in POI. Like 6-8" different (lower normally) at 100yds. Other than that they are fun!!
Just can't swap loads and go.
Dave
But as for me and my house we will serve the Lord. Joshua 24:15
I can do all things through Christ who strengthens me. Phil. 4:13
I DON'T NEED A WSM AS I HAVE A WEATHERBY!
|
|
|
|
|
Joined: Dec 2002
Posts: 6,924
Campfire Tracker
|
|
Campfire Tracker
Joined: Dec 2002
Posts: 6,924 |
Thanks Rocky, you're right, as is Daveh, but they sure are fun to shoot!
Selmer
Selmer "Daddy, can you sometime maybe please go shoot a water buffalo so we can have that for supper? Please? And can I come along? Does it taste like deer?" - my 3-year old daughter
|
|
|
|
|
Joined: Jan 2001
Posts: 21,317
Campfire Ranger
|
|
Campfire Ranger
Joined: Jan 2001
Posts: 21,317 |
In the rounds I've used blue dot I've found if I'm 3" high at 100 with my hunting loads, the blue dot loads are pretty much dead on.
|
|
|
|
|
Joined: Nov 2008
Posts: 5
New Member
|
|
New Member
Joined: Nov 2008
Posts: 5 |
Seafire,
Is there any data for the .338WM?
|
|
|
|
|
Joined: Apr 2004
Posts: 42,695
Campfire 'Bwana
|
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,695 |
Seafire,
Is there any data for the .338WM? Yes there is... but I'd need to know bullet weight desired to use and what game you are looking to hunt with it....and what bullet you were thinking about using... but give that info, I should be able to set you up...
"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: May 2009
Posts: 7
New Member
|
|
New Member
Joined: May 2009
Posts: 7 |
Seafire, First off I'd like to say thanks for all the valuable information on reloading with blue dot. Your work is greatly appreciated as I have been reading many of your articles. I have one question, I was wondering if you could help me with as I do not have access to a chronograph. I have a Stevens Model 22-250 Rem, 1:14 twist, 22" barrel. I would like to reload the 36 Grain Varmint Grenade at a reduced load that would give me approx 2700 FPS to imitate the 17HMR's velocities and accuracies as close as possible. Would you have a recommended load that I could start with? Understanding that no 2 guns are alike when it comes to data, it would be greatly appreciated that I could get as close as possible with your assistance. Take care. Seafire,
Can you post data for the 50gr bullet out of a .22-250 please?
Thanks! II. 50 grain Hornady SP, Win Large Rifle Primer 1. 7 grs: 1722 fps 2. 8 grs: 1911 fps 3. 9 grs: 2057 fps 4. 10 grs: 2206 fps 5. 11 grs: 2328 fps 6. 12 grs: 2473 fps 7. 13 grs: 2627 fps 8. 14 grs: 2729 fps 9. 15 grs: 2856 fps 10. 16 grs: 2940 fps 11. 17 grs: 3116 fps 12. 18 grs: 3181 fps 13. 19 grs: 3271 fps 14. 20 grs: 3354 fps With this bullet, all the way to 20 grains was reached ( 60%). However, I would recommend max being set at 19 grains or less. III Sierra 52 grain Hollow Point Match Win Large Pistol Primer 1. 7 grs: 1676 fps 2. 8 grs: 1841 fps 3. 9 grs: 1998 fps 4. 10 grs: 2127 fps 5. 11 grs: 2311 fps 6. 12 grs: 2416 fps 7. 13 grs: 2551 fps 8. 14 grs: No Read 9. 15 grs: 2795 fps 10. 16 grs: 2935 fps 11. 17 grs: 3029 fps 12. 18 grs: 3127 fps 13. 19 grs: 3252 fps 14. 20 grs: 3297 fps This bullet also reached the 20 grains mark ( 60 %) . However once again I recommend max being set at 19 grains or less. I've been shooting a load of 18.5 grains of Blue Dot in a 22.250 lately and it has proven to be quite the tack driver... another good thing about it, is that the brass does not even have to be resized frequently... I just deprime and then reprime and it is ready to go again.. doesn't even need neck resizing... I am using this load as a test on stretching out brass life.. so far on 10 test batches of 10 cartridges each, several have hit the 20 reloads mark and are still going strong.. I am finding this will have an advantage when gone out of state on a prairie dog shooting trip if you can reload the cases without the need to neck size them even...they are averaging needing a neck size about every 5th shot only...
"Someday, somehow, I will figure out a way to ditch work and spend more time in the outdoors"
|
|
|
|
|
Joined: Apr 2004
Posts: 42,695
Campfire 'Bwana
|
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,695 |
WEll welcome to the Campfire first of all....
I have checked my data and the lightest bullet I have done work with is the 46 grain HP from Winchester...so I have not done any testing with that bullet to accurately give you a charge.
however I do have some 36 grain Varmint Grenade Bullets and also have a chronograph....
If you can give me a couple of days, I should be able to load up some and test them out...since I know what velocity you are looking for....
I can give you a ball park guestimate, but since you have no chronograph, if you can have a little patience, I can give you an exact in a day or two if that is acceptable.
"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: Mar 2006
Posts: 14,475
Campfire Outfitter
|
Campfire Outfitter
Joined: Mar 2006
Posts: 14,475 |
I have used the 36gr VG, and 17gr of BD gives me 3300fps out of a 26" barrel...
|
|
|
|
|
Joined: Mar 2001
Posts: 18,881
Campfire Ranger
|
|
Campfire Ranger
Joined: Mar 2001
Posts: 18,881 |
I've got some pressure tested data from Dupont for the 7X57. Using IMR 4227, which is alot slower than Blue Dot, they recommend 22.5 grs. for 2080 fps. with the 130 gr. Speer. With the same charge, and the 160 gr. Speer, they get 1890 fps. Pressures run from 44,300 CUP to 46000 CUP. These are their maximum recommended loads.
I have to conclude that using up to 24 grs. of a much faster powder, and getting alot more velocity is being done at alot more pressure. Sure doesn't give me the warm fuzzies.
One thing guys like Norman E Johnson have pointed out when using greatly reduced charges is the use of magnum rifle primers instead of standard primers. That improves accuracy a great deal. E
|
|
|
|
|
Joined: Mar 2001
Posts: 18,881
Campfire Ranger
|
|
Campfire Ranger
Joined: Mar 2001
Posts: 18,881 |
The Dupont pressure data I have lists IMR 4227 at 21.5 grs. with a 50 gr. bullet in the .22-250. That loads produces a velocity of 3140 fps. at 49300 CUP. It is the maximum load they recommend with that powder.
IMR 4227 is alot slower than Blue Dot. E
|
|
|
|
|
Joined: May 2009
Posts: 7
New Member
|
|
New Member
Joined: May 2009
Posts: 7 |
That is awesome. And thank you, it's a pleasure hangin' out with people that have the same interests and being a part of the information highway. I too am heading out tonight to group some of the 36 gr Varmint Grenades that I have loaded, but I may be out of the ball park we'll see. I have loaded 11,12,13,13.5,14 grain loads to start and will let you know how they pan out less chrony results of course! TTYL WEll welcome to the Campfire first of all....
I have checked my data and the lightest bullet I have done work with is the 46 grain HP from Winchester...so I have not done any testing with that bullet to accurately give you a charge.
however I do have some 36 grain Varmint Grenade Bullets and also have a chronograph....
If you can give me a couple of days, I should be able to load up some and test them out...since I know what velocity you are looking for....
I can give you a ball park guestimate, but since you have no chronograph, if you can have a little patience, I can give you an exact in a day or two if that is acceptable.
"Someday, somehow, I will figure out a way to ditch work and spend more time in the outdoors"
|
|
|
|
|
Joined: May 2009
Posts: 7
New Member
|
|
New Member
Joined: May 2009
Posts: 7 |
Awesome Jordan. Thanks that helps. I have used the 36gr VG, and 17gr of BD gives me 3300fps out of a 26" barrel...
"Someday, somehow, I will figure out a way to ditch work and spend more time in the outdoors"
|
|
|
|
|
Joined: Sep 2005
Posts: 7,132
Campfire Tracker
|
|
Campfire Tracker
Joined: Sep 2005
Posts: 7,132 |
Anyone have any official pressure tested data with BD in rifle cases?
It seems it would be far over safe pressures, but I could be wrong.
Reloader
|
|
|
|
|
Joined: Jun 2008
Posts: 488
Campfire Member
|
|
Campfire Member
Joined: Jun 2008
Posts: 488 |
Sigh. Almost any powder can be loaded to "over safe pressure" as long as enough of it can fit in the case. Here is some pressure data from the Hercules Reloader's Guide dated 1990:
.30-30 - 152 gr cast - 13.0 BD - 1525 fps - 29,000 cup
.35 Remington - 170 FMJ - 13.0 BD - 1300 fps - 22,400 cup
Perfectly safe as long as the reloader is careful. You could say the same thing about H4227 in those same cases, that powder can be loaded to "over safe pressure" too. Caveat emptor.
.
|
|
|
|
|
Joined: Apr 2004
Posts: 42,695
Campfire 'Bwana
|
|
Campfire 'Bwana
Joined: Apr 2004
Posts: 42,695 |
[quote=8675309]That is awesome. And thank you, it's a pleasure hangin' out with people that have the same interests and being a part of the information highway. I too am heading out tonight to group some of the 36 gr Varmint Grenades that I have loaded, but I may be out of the ball park we'll see. I have loaded 11,12,13,13.5,14 grain loads to start and will let you know how they pan out less chrony results of course!
TTYL
Pay attention to how well the 12, 13 and 14 grain loads group.. my guestimation is that way you were originally looking for would exist in about the 12.5 grain range...
the weather and a computer system crash at an account of mine due to a lightning strike this week, have kept me from being able to get out and test these loads...
I have been getting home at 1 and 2 AM this week...trying to get a system back up and running for a nursing facility...
"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 2009
Posts: 16
New Member
|
|
New Member
Joined: Apr 2009
Posts: 16 |
Seafire
How about Blue Dot loads for a 243 with 70-80 grain bullet and 30-06 with 100-125 grain bullets?
richard
Last edited by fields; 06/06/09.
|
|
|
|
|
590 members (160user, 12344mag, 007FJ, 10gaugemag, 01Foreman400, 10Glocks, 62 invisible),
2,349
guests, and
1,218
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
Forums81
Topics1,190,544
Posts18,453,297
Members73,901
| |
Most Online11,491
Jul 7th, 2023
|
|
|
|
