24hourcampfire.com
24hourcampfire.com
Previous Thread
Next Thread
Print Thread
Hop To
Page 2 of 2 1 2
Joined: Dec 2012
Posts: 423
J
JFE Offline
Campfire Member
Offline
Campfire Member
J
Joined: Dec 2012
Posts: 423
I've slugged a couple of Miroku made 45/70 barrels and they were consistent and were both much tighter than Marlin barrels at 0.450 bore and 0.457 groove diameter. I'd be inclined to work on loads that produced 1400 fps or less and see how that works.

BP-B2

Joined: May 2016
Posts: 59,546
J
Campfire Kahuna
OP Offline
Campfire Kahuna
J
Joined: May 2016
Posts: 59,546
I used some IMR 4198 with some 300 HP bullets and it was a good load.


I will try some with the cast and slow them down.


I am MAGA.
Joined: Nov 2003
Posts: 2,428
3
Campfire Regular
Offline
Campfire Regular
3
Joined: Nov 2003
Posts: 2,428
if the bullets not stabilizing the bullet may not be cast with an alloy thats hard enough,to firmly grip the rifle lands,
try a 95% WW and 5% pure tin alloy
they may be sized under bore diameter , generally youll want a .459 min, , or the rifle twist rate may be too slow too stabilize the projectile.
obviously it helps if you verify what your dealing with.
verify the rifles twist rate is compatible, if possible get a chronograph to verify velocity
never guess deal in known facts
http://www.bergerbullets.com/twist-rate-calculator/
[Linked Image]
measure the projectile length and diameter after its sized and lubed
gas check bullet designs tend to produce better accuracy
bullets pushed too over about 1900 fps have a greater tendency to strip in the rifling , some bullet designs are inherently a bit less stable
the properly cast 405 grain bullet in a 458 caliber matched to most common twist rates are stable to well past 400 yards

this non-gas check design from NEI has a good track record
[Linked Image]
as does this similar
gas check design
[Linked Image]
many guys have good luck with this heavier 475 grain cast gas check bullet
https://www.midwayusa.com/product/4...-diameter-475-grain-round-nose-gas-check

Last edited by 340mag; 12/26/18.
Joined: Nov 2003
Posts: 2,428
3
Campfire Regular
Offline
Campfire Regular
3
Joined: Nov 2003
Posts: 2,428
http://www.handloads.com/loaddata/d...;type=rifle&Order=Powder&Source=

you might want to try 45 grains of either varget, IMR3031 or RL7 all three have a long track record of providing accurate loads with cast 405 grain 45/70 bullets

Last edited by 340mag; 12/28/18.
Joined: Mar 2011
Posts: 6,412
Campfire Tracker
Offline
Campfire Tracker
Joined: Mar 2011
Posts: 6,412
Thanks for the info. I have had decent groups starting with 50.5 grains of Varget but as it was listed as the starting load I didn't go any lower. I will test these tomorrow.

I had excellent groups and mild recoil for a 310 grain * lead flatnose using 41.5 grains of 3031. I haven't shot to 100 yard so I do not yet know the drop.

* Accurate molds 45-310 EG weighing 315 grains with powder coating and gas check

Last edited by Ranger_Green; 12/28/18.

Me solum relinquatis


Molon Labe
IC B2

Joined: May 2016
Posts: 59,546
J
Campfire Kahuna
OP Offline
Campfire Kahuna
J
Joined: May 2016
Posts: 59,546
I think thats what you sent me!


They are too beautiful to shoot!


I am MAGA.
Joined: Mar 2011
Posts: 6,412
Campfire Tracker
Offline
Campfire Tracker
Joined: Mar 2011
Posts: 6,412
Originally Posted by Jim_Conrad
I think thats what you sent me!


They are too beautiful to shoot!

Shoot em! I'll send more.


Me solum relinquatis


Molon Labe
Joined: May 2016
Posts: 59,546
J
Campfire Kahuna
OP Offline
Campfire Kahuna
J
Joined: May 2016
Posts: 59,546
By god you did! Thank you very much.


Got em yesterday.


The boys and I tried loading some this morning. That darn short throat shut us down again.


What load are you using?

Does it matter if they are not crimped in the groove?


Ooops! I see you are using 3031.




Last edited by Jim_Conrad; 01/20/19.

I am MAGA.
Joined: Mar 2011
Posts: 6,412
Campfire Tracker
Offline
Campfire Tracker
Joined: Mar 2011
Posts: 6,412
https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/12564870/1

Above is an earlier thread where Hawk I and the rest gave some particular advice that helped me a lot. Try using your short throat as the overall loading length - just back it off enough that you can close the breech. According to Hawk I it does not matter where it is crimped. You can crimp into the bullet anywhere, as it will still prevent the bullet from being pushing in from recoil.

Of course, if you have to seat it short to work, make it work for you.


I have to almost crush the lever to close my rifle but it shoots fine with no signs of leading. I have been unable to reproduce the great results of earlier so I hope I am not wasting your time.


Me solum relinquatis


Molon Labe
Joined: May 2016
Posts: 59,546
J
Campfire Kahuna
OP Offline
Campfire Kahuna
J
Joined: May 2016
Posts: 59,546
Well, thanks again. I really appreciate the help you have given me.


I had the boys in the bath tub so I did what you said and seated them so they would chamber easy.

2.430 I believe.


Stepped out the back door and tried some. 50 grains of 2015.

Worked perfectly.



Got the boys out of the bath and they helped reload the test rounds.



[Linked Image]


I am MAGA.
IC B3

Joined: May 2016
Posts: 59,546
J
Campfire Kahuna
OP Offline
Campfire Kahuna
J
Joined: May 2016
Posts: 59,546
No reason for the 2015 except the Lyman book called for it and I had some I was never going to use otherwise.


Will check for velocity and accuracy later.


I am MAGA.
Joined: Jun 2007
Posts: 21,914
H
Campfire Ranger
Offline
Campfire Ranger
H
Joined: Jun 2007
Posts: 21,914
Regarding the crimp; you want enough crimp to keep the bullet from moving aft. Don't try to overdo it, just snug enough not to have a bullet go deeper, but don't deform the bullet or bulge the brass behind the crimp.

It should "feel" the same each time...

Joined: Mar 2011
Posts: 6,412
Campfire Tracker
Offline
Campfire Tracker
Joined: Mar 2011
Posts: 6,412
Originally Posted by HawkI
Regarding the crimp; you want enough crimp to keep the bullet from moving aft. Don't try to overdo it, just snug enough not to have a bullet go deeper, but don't deform the bullet or bulge the brass behind the crimp.

It should "feel" the same each time...



Man, I love this place.

Thank you, Sir, for all the great advice. Please keep it coming.


Me solum relinquatis


Molon Labe
Joined: Jan 2001
Posts: 2,597
M
Campfire Regular
Offline
Campfire Regular
M
Joined: Jan 2001
Posts: 2,597
In my guide gun just 25 grains of H322 make nice plinker loads. Alos IMR 3031 works well for a moose killing load.


"Delight yourself in the Lord and He will give you the desires of your heart." Psalm 37, verse 4.


"The lazy do not roast any game, but the diligent feed on the riches of the hunt." Proverbs 12:27
Joined: Dec 2000
Posts: 10,351
B
Campfire Outfitter
Offline
Campfire Outfitter
B
Joined: Dec 2000
Posts: 10,351
I'd say the bevel base is your issue.


Whatever you are willing to put up with, is exactly what you will have.

When your ship comes in. ... make sure you are willing to unload it.

PAYPAL, sucks and I will never use them again. I recommend you do the same.
Joined: Dec 2000
Posts: 10,351
B
Campfire Outfitter
Offline
Campfire Outfitter
B
Joined: Dec 2000
Posts: 10,351
put a GC on the bevel base and see how they do.

Bevel base cast bullets are a hit and miss proposition when shooting them.

some guns won't shoot them at all, while others dote on them.


Whatever you are willing to put up with, is exactly what you will have.

When your ship comes in. ... make sure you are willing to unload it.

PAYPAL, sucks and I will never use them again. I recommend you do the same.
Page 2 of 2 1 2

Moderated by  RickBin 

Link Copied to Clipboard
YB23

Who's Online Now
766 members (007FJ, 10gaugemag, 1beaver_shooter, 10ring1, 160user, 10gaugeman, 86 invisible), 2,929 guests, and 1,242 robots.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums81
Topics1,187,704
Posts18,400,075
Members73,820
Most Online11,491
Jul 7th, 2023


 







Fish & Game Departments | Solunar Tables | Mission Statement | Privacy Policy | Contact Us | DMCA
Hunting | Fishing | Camping | Backpacking | Reloading | Campfire Forums | Gear Shop
Copyright © 2000-2024 24hourcampfire.com, Inc. All Rights Reserved.
Powered by UBB.threads™ PHP Forum Software 7.7.5
(Release build 20201027)
Responsive Width:

PHP: 7.3.33 Page Time: 0.119s Queries: 15 (0.003s) Memory: 0.8807 MB (Peak: 1.0072 MB) Data Comp: Zlib Server Time: 2024-03-29 00:48:04 UTC
Valid HTML 5 and Valid CSS