Yesterday's Weapons Forums

Discussion of history's firearms
Site Announcements

Attention New Members and those new registering!
We had a lot of problems with spammers and bot attacks with the stock measures provided by the software. The 7 for registration was a fix that we came up with on our own that has worked quite well. Yes it is a PIA for both you and administration to put you onto your chosen username.
If you come back on and your login does not work retry with your username without the 7.

Thanks for joining us from the administration.

It is currently Thu Mar 28, 2024 6:24 pm

All times are UTC - 5 hours [ DST ]




Post new topic Reply to topic  [ 9 posts ] 
Author Message
PostPosted: Sun Jan 04, 2015 6:59 pm 
Offline
Second Lieutenant
Second Lieutenant

Joined: Sun Nov 24, 2013 8:12 pm
Posts: 438
I have heard on a different forum (Oh the horror) that the later model Trapdoors use a heavier bullet. Has anyone heard of this. I have a 1888 model with the dreaded ramrod bayonet, or the deluxe campfire weenie cooker. Any word on this would be appreciated.

Best Regards,

Mark


Top
 Profile  
 
PostPosted: Sun Jan 04, 2015 10:12 pm 
Offline
Теперь предлагаем бесплатную ежедневную маммографию!
Теперь предлагаем бесплатную ежедневную маммографию!
User avatar

Joined: Sun Aug 05, 2007 9:04 pm
Posts: 11655
Location: On the couch a lot now that I'm retired
I'd be a little more concerned about bullet diameter than weight. About all I can tell you is cav carbines and long rifles had different weight bullets. SW

_________________
Slava Ukraini!!


Top
 Profile  
 
PostPosted: Sun Jan 04, 2015 10:34 pm 
Offline
Second Lieutenant
Second Lieutenant

Joined: Sun Nov 24, 2013 8:12 pm
Posts: 438
I believe I've got a 405 grain bullet mold on the way. Shouldn't that be heavy enough?

Best Regards,

Mark

BTW, next step up is around 500 grains. Eee Gads, that sounds huge.


Top
 Profile  
 
PostPosted: Sun Jan 04, 2015 11:09 pm 
Offline
Теперь предлагаем бесплатную ежедневную маммографию!
Теперь предлагаем бесплатную ежедневную маммографию!
User avatar

Joined: Sun Aug 05, 2007 9:04 pm
Posts: 11655
Location: On the couch a lot now that I'm retired
That's my choice. Works well for 43 Dutch, too! SW

_________________
Slava Ukraini!!


Top
 Profile  
 
PostPosted: Mon Jan 05, 2015 12:10 am 
Offline
Second Lieutenant
Second Lieutenant

Joined: Sun Nov 24, 2013 8:12 pm
Posts: 438
That's good to hear. Now to land something in 43 Spanish.

Best Regards,
Mark


Top
 Profile  
 
PostPosted: Mon Jan 05, 2015 10:10 pm 
Offline
Second Lieutenant
Second Lieutenant
User avatar

Joined: Tue Dec 20, 2011 1:44 pm
Posts: 509
Location: Ohio or Arizona it depends
As far as basic trapdoor rifle (carbine powder to ball weights were different) history goes that is correct. the .45-70 government cartridge was standardizes in 1873 as the .45-70-405 government or .45 caliber ball of 405 grain weight in front of 70 grains of powder. In 1879 ballistic tests were made and the round was changed to the .45-70-500 with the bullet weight increasing to 500 grains.
(The carbine round was a .45-55-405 with a reduced powder charge of 55 grains and the addition of wadding to fill empty space in the cartridge. This was done to try to reduce the recoil of the carbine. some time after the 1879 Sandy Hook tests the carbine round was dropped and the .45-70-500 became standard for all uses.)


Top
 Profile  
 
PostPosted: Thu Jan 22, 2015 11:49 am 
Offline
Lance Cpl
Lance Cpl

Joined: Mon Jan 19, 2015 6:58 pm
Posts: 15
Many target shooters use the Greenhill formula for ideal starting bullet selection. You can find it online and just enter the data for your load. The standard twist for the 45.70 Trapdoor is one in 22 inches. The ideal bullet should measure 1.3 inches in length at 1400 fps. Basically this means at 1400 fps the bullet will be put to sleep much quicker than another length. By asleep I mean that there will be less wobble until the bullet stabilizes. This won't overcome a bullet out of balance, but considering a well formed bullet. This should work for ranges up to 300 yards. After that the bullet slows as does the spin and becomes unstable. 1400 fps with the 500 gr bullet isn't pushing a trapdoor. The guys that shoot 600 yards or more use bullet weights of around 550 grains with a muzzle vel. of 1600 fps. The Trapdoor generally shoots good no matter what is stuffed into it. A 430 gr bullet or 500 performs very well at 300 or less.


Top
 Profile  
 
PostPosted: Thu Jan 22, 2015 5:50 pm 
Offline
Second Lieutenant
Second Lieutenant

Joined: Sun Nov 24, 2013 8:12 pm
Posts: 438
I rarely…well never shot at over 200 yards yet, even with smokeless rounds. I think the 405 grain bullet mold I have should work good then. Now to pick a sizer….Ummh.

Best Regards,

Mark


Top
 Profile  
 
PostPosted: Sat Mar 07, 2020 10:43 am 
Offline
Lance Cpl
Lance Cpl

Joined: Mon May 13, 2013 1:20 pm
Posts: 35
I shoot .405 & .500 grain in mine with out any difference.


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 9 posts ] 

All times are UTC - 5 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 2 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Jump to:  
cron
Powered by phpBB® Forum Software © phpBB Group