Ol Sparky: I did some looking & found a load for the .45-2.1 over on the GOEX board..
As for a load, HEED the advice from the Rdnck:
.45-2.1 (AKA .45-70) BP load:
This is EXACTLY the way I load my match ammo, no BS. It shoots in every 45-70 I own--3 Shilohs, 2 Pedersolis, and an old roller with a 1-22 twist barrel.
Remington cases, flash holes drilled to 3/32 inch. Cases are weighed and segregated into light, medium, and heavy lots. They are full length sized and neck expanded after every firing and are primed with standard, not magnum Winchester Large Rifle primers. I use standard Lyman dies. The expander plug sizes the inside of the case mouth to .456.
Powder is weighed on a RCBS 1010 scale. 70 grains of Goex 2f by weight, dropped through a 24 inch drop tube. The powder settles about .230 or so from the top of the case mouth. It is then compressed with a compression die so that it measures .600 from the top of the powder to the top of the case mouth. The amount of compression on the powder runs somewhere around .370 to .380. After the powder is compressed, a wad cut from ordinary wax paper is placed in the case mouth and pushed down on top of the powder with a wooden dowel on top of the powder.
When the cases are neck expanded, they have enough flare at the mouth so that the bullet will go into the case the depth of the first driving band. It is very important to not shave lead from the bullet when it is seated.
The bullet is a 457132 Lyman Postell, cast 30-1, sized to .458 and lubed with Black Magic lube. It is seated so that the top of the case mouth comes to the bottom of the top driving band, covering all the grease grooves. The seating die is adjusted so that all the flare is removed from the mouth of the case, but there is no crimp. The outside diameter of the loaded cartridge case at the case mouth is .478. This is necessary to insure that they will chamber freely in the Shilohs.
Bullets are weighed to +or - two tenths of a grain, and are ladle poured at 820 degrees out of a pot that holds 60 pounds of lead. A Wal-Mart fish cooker is the heat source.
I might add that clean cases , especially the necks are important to achieving low extreme spreads and sd numbers. We use a Thumbler's Tumbler and ceramic media you can get from Harlan Sage at Sagebrush products. You won't believe how well one of these things works. Hope this helps. Shoot straight, rdnck.
Rdncks wife just won the ladies Creedmoor match @ Rayton, so he does know what hes talking about. He also does load development & testing for GOEX,
http://goexpowder.com/phpBB2/viewtopic.php?t=492 Compression + powder charge + cartridge OAL are variables that a Shooters needs to adjust in order to obtain gilt-edge accuracy form his/her rifle. The rifle will soon tell the Shooter if he is on the right road by the size of the groups.
Also log on @:
reloading manual
http://www.ssbpcrc.co.uk/Resources/Introduction%20to%20BPCR%20Loading.pdfhttp://www.longrangebpcr.com/ Read the info found under ammunition, tips, strategies, etc.
Casting manual:
http://www.longrangebpcr.com/8Phases.htm(I believe I posted the above links when you asked about bullet moulds.)
Some other useful BPCR boards are:
Shilo-Sharps:
http://www.shilohrifle.com/forums/index.php(The Shiloh board has had numerous threads for helping out new BOCR Shooters w/ loading & casting.)
GOEX powder:
http://www.shilohrifle.com/forums/index.phphttp://groups.msn.com/BPCR/messages.msnw