Velocity chart

[Tb54]

anyone know of a velocity chart for different charges? Much like a CF reloading manual would have?

 

[Kansas Jake]

Lymans Black Powder Handbook has much of this information for the common calibers and barrel lengths. It is available from Midway for about $20 among other places

 

[Zonie]

anyone know of a velocity chart for different charges? Much like a CF reloading manual would have?

Like Kansas Jake said, Lyman offers an excellent book for muzzleloaders called, "LYMAN BLACK POWDER HANDBOOK & LOADING MANUAL" that lists hundreds of different loads for many different calibers shooting both patched roundballs and lead bullets.

Here are a few graphs I made from the data listed in my copy of the book.

The .54 chart should say it is for a .535 diameter ball.

The powder loads for all but the .36 caliber chart are starting at the lower left at 40 grains. Each point to the right represents an increase of 10 grains of powder.

The .36 caliber chart starts at 30 grains and increases to 70 grains in 10 grain increments.

I think anyone wanting to understand what powder loads do should have a copy of this book. It has been in print for a long time and often the book can be found in a Used Book Store.

 

[hanshi]

There are several available but none matches what my chronograph tells me.

 

[Bent Sight]

There are several available but none matches what my chronograph tells me.

I have had the same experience. A friend loaned me his copy of the Lyman book, which is an excellent book, and the velocities in the charts did not match my experience with my 3 muzzle loaders in .45 and .50 caliber.

 

[Tim L]

anyone know of a velocity chart for different charges? Much like a CF reloading manual would have?

There are Lyman black powder handbook on ebay http://rover.ebay.com/rover/1/711-5...0001&campid=5338413729&icep_item=372548197668

 

[Carbon 6]

There are several available but none matches what my chronograph tells me.

Mine either, they differ by a lot.

 

[George]

I think anyone wanting to understand what powder loads do should have a copy of this book.

I agree. I have confidence in their data because every time I've used it in calculating a trajectory my results match their prediction very closely. For example, if I use their velocity, and the result says the ball will hit 4 inches low at 100 yards, it does, with high probability.

As I recall, every velocity given in the book is the average of 5 test shots, not just the measurement of one shot.

Spence

 

[Eterry]

I have a well worn Lyman BP Handbook that I've had for years. If you've handloaded cartridge arms you and chrono'ed your loads you'll know the book is only gonna get close to your velocity. To many factors go into that.
But... like a smokeless manual, it gives you a starting and stopping place.
Btw, I've trusted the Lyman trajectories as well... they seem to be based on sound science, unlike the popular BP writer who said the Walker Colt had more velocity and ft. Lbs. than the 44 Rem mag .