anyone here load and shoot one I am buying one and will need to work up some loads.
Dean

The recipe is as follows:

After sizing your brass, use an expander that expands the neck at .457 - .458 and puts a very slight bell of .461 - .462 on the mouth (can be obtained from www.buffaloarms.com).

Prime with a standard winchester rifle primer - Not magnum.

Drop tube 105g Goex Fg.

Use compression die (www.buffaloarms.com) to compress the powder to the level that your bullet and .060 wad will set on top of the powder column. If you compress with your bullet, you will deform it.

Use a creedmore style bullet such as the Lyman 457132 Postell of about 530 - 540 grains cast at 20-1 and lubed with an appropriate Black Powder Cartridge lube such as SPG or DGL. You will have better success if you learn to cast these yourself rather than commercially made.
If your rifle is a Shiloh, bullet size should be .458

Seat the bullet to cover all the grease grooves and deep enough to chamber.

Do Not Crimp. At most, you can remove the bell, but I don't even do this as it is so slight, if you you the expander above, you can't even notice a bell.

The 45-70 is very forgiving in learning how to load for these things. The 45-110 is a true high performance cartridge in the BPCR world (although compared to smokeless, seems slow) and this cartridge does not forgive creative loading practices with good accuracy. However, when loaded correctly for your rifle (varying powder charges, bullet seating etc) this cartridge will be accurate out to 1000 yds.

Use a blow tube for 4-5 breaths between each shot to keep the fouling moist and you will not have to clean between shots. Cleaning between shots will enlarge your groups.

You can shoot smokeless (be very carefull because of the large case) and jacketed bullets but you will find that these rifles were built for Black Powder and will shoot much better with real black powder and soft lead bullets.

The lubes that I mentioned above are not anything like the lubes you've seen on cast pistol bullets. It is soft and designed to keep the powder fouling moist when coupled with your breath from the the blow tube.

Caution - these things are addictive.