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I used Goex powders for this development. If I change to another powder as you mentioned, I will adjust the amount of powder. I will read on the bottle or contact the manufacture for the adjustment. I will adjust the powder using Goex powder as the base line. In my worksheet, I have a section...

The reason why I am interested is my ballistic program will take the chronograph (instrumental) velocity and calculate the muzzle velocity for the bullet trace. I do not think many of the programs will do this. My program is the Oehler Ballistic Explorer that goes along with the 35P chronograph...

I like to watch the range and see who is using what. I have an Oehler 35P chronograph. Do you measure from the gun muzzle to the chronograph for calculating the muzzle velocity?

What chronograph did you use?

You will see LETTERED gauges in my chart. When the hand held micrometer was invented, the LETTERED gauges was added to the gauge chart. Please notice were are wide gaps between some of the gauges. The LETTERED gauges were added to these gaps. Also diameters smaller than 50 gauge are considered...

The bore to gauge table has been worked out several years ago. I am attaching the table from the NRA Questions & Answers Handbook. Apparently this question was asked many times being it was among the 150 most asked questions. I always used this in my NRA classes. I am attaching the formula for...

As you can see, the calibers we know today actually evolved over time and measuring devices. I am sure the back woods gunsmith had trouble maintaining a good bore diameter. As the bench mounted and hand held micrometer were invented, the accuracy was greatly improved. A person would find these...

Some time ago, I contacted RCBS about using their powder trickler with black powder. The return message from RCBS said "they do NOT recommend the use of their triclker for black powder because of static electricity". I hope they do testing before making public statements.

A letter to the reloading companies will clear up the use of aluminum around black powder. Some powder measures have cast iron bodies and some have aluminum parts that could be in contact with black powder. These measures are marked NO BLACK POWDER and in the manual too. One company advised me...

A person should consider static electricity when working around black powder.

I am attaching a powder table for converting black powder in grV to grW for use in my Hawken 54 caliber. You can see the items used in the header. Owners manual sets the maximum charge of 100 grV for FFg powder. Hopefully everyone knows that black powder expands and contracts with changes in...

I have tried compacting a black powder charge. I keep going back to chemistry class and how to measure dry and liquids chemicals. Our class experiments were set up show the importance of proper measurement. In fact I try to eliminate any compression at all in the load. I use making a cake as an...

Sorry -- I am into ballistics and have a private range to shoot on. I really enjoy measuring powder and shooting through a chronograph. I have the math and physics background to work with the data. Most people don't know that ballistics is a separate field in physics. Where the normal physics...

I am using an Oehler Ballistic Explorer program. I have a 54 caliber with 230 gr RB. Using the Gs drag function and B.C. of 0.145. Here are the velocities. The Gs drag function is for round ball projectile, 0 25 50 75 100 125 150 175 200 225 250 Yards 1355 1228...

When a shooter wants to use the crack method of measuring velocities, go to the Lyman Black Powder Handbook and chapter 14 Black Powder Fact & Fancy. The slipstream can cause the crack rather than the ball. This is why the chronograph is a better way of checking the velocity. I can understand...

I have an Oehler 35P chronograph that I have used since 1987. I have shot many rounds, both modern and muzzle loading, without a problem. One MUST have extra distance to the start screen for a muzzle loader. I use 14 feet for a good velocity reading. I made a post a couple months ago for the...

The Dope Bag has been a wonderful NRA benefit for me.

I have learned a lot from the dope bag.

Thank you for your response. I am learning more about guns every day. I have used the NRA techs for many years to answer questions for my classes along with the NPS living history section. Have a good day

I was told that the reason the front sight was back from the muzzle was to allow for recut and crown because of muzzle wear from ram rod.