I am new to this forum and fairly new to cast bullets in black powder cartridge rifles. I am having a custom reamer made up for a 32-40 that I am building for my granddaughter and was wondering what the best dimensions would be? What I am thinking is neck .002 over loaded cartridge size, throat .0005 over bullet diameter with a leade angle of 1 1/2 degrees. Does anyone have thoughts on this? Any advice I can get will be much appreciated.
Chamber dimensions
- 292 Views
- Last Post 21 January 2021
Thanks for the information. I do have enough brass to last me I think and it is all the same lot number.
Attached Files
I am new to this forum and fairly new to cast bullets in black powder cartridge rifles. I am having a custom reamer made up for a 32-40 that I am building for my granddaughter and was wondering what the best dimensions would be? What I am thinking is neck .002 over loaded cartridge size, throat .0005 over bullet diameter with a leade angle of 1 1/2 degrees. Does anyone have thoughts on this? Any advice I can get will be much appreciated.
-----------------------------------------------------------------------------------------------
32-40, great cartridge...
So unless you are into turning the necks on your brass, I would buy as much brass as you think you will ever need.
Same lot number etc. I found brass thickness go from 12 thousands to 15 thousands from different manufacturers.
I would do this before I had a reamer made.
I have about 200 pieces of new 32-40 brass from Winchester I use to make my 35-40 Maynard cartridges.
UN FIRED they are 2.125" long, brass thickness at neck is .0125-.013
I had a couple of custom reamers made for a 38-55 and a 35-40 Maynard.
I specified a chamber dimension where I planned to neck trim to 11/1000 with a specific bullet diameter cast at 20/1 (,001 over groove) and as you said a neck .002 over loaded cartridge size. I also have a leade angle of 1 1/2 degrees.
In both of these rifles I have a free bore of .20
My bullet design, has a front driving band that fits exactly in the free bore.
When I designed this bullet to fit (nose rides on the lands) (driving bands at or .001 over groove)
I anticipated that this bullet is be used over Black Powder.
If you are going faster than BP velocities,( using smokeless powder) then I would use a harder cast bullet.
(maybe .002 over groove)
Apologies if this info is 'old news'
Attached Files
You have the basics. Check on the ASSRA forum, as they have lots of opinions.
Attached Files
Categories
- All Categories
- General Polls
- Contact Us w/ Forum Issues
- Welcome to The Cast Bullet Association Forum
- General
- Bullet Casting
-
Guns and Shooting
- AR Platform
- TC Contenders & Other Single Shot Handguns
- Shotguns
- Informal Matches & Other Shooting Events
- Gunsmithing Tips
- Gun Cleaning & Maintenance
- Optics
- Benchrest Cast Bullet Shooting
- Military Bench Rest Cast Bullet Shooting
- Silhouette Shooting
- Postal Match Cast Bullet Shooting
- Factory Guns
- Black Powder Cartridge
- Hand Guns
- Lever Guns
- Single Shot Rifles
- Bolt Action Rifles
- Military Surplus Rifles
- Plinkers Hollow
- Muzzleloaders
- Hunting
- Reloading
- Buy, Sell or Trade
- Other Information & Reference
Search
This Weeks High Earners
-
Aaron 29
-
linoww 17
-
RicinYakima 16
-
Tom Acheson 13
-
JeffinNZ 8
-
timinpa 7
-
beltfed 6
-
Boschloper 3
-
Bryan Austin 3
-
muley 3