Finished the Thumper project

[Dobegrant]

Congratulations, awesome result to a great project

 

[BS]

Great hunt!

Love your little Thumpers!

Couple of questions.

110 by weight or volume?

Bullet fit? How tight are your bullets to the bore?

What are your velocities averaging? I have some very old 777 and would like to compare velocities.

I have a 54 Thumper project to get back to,[24" 1-36 twist] been looking at the Accurate 54-477S mold.

I may try some NE 485s in .542.
A .541 gage pin will slide in, but the .542 won't.

Thanks, for your time.

No BS

 

[chorizo]

Great hunt!

Love your little Thumpers!

Couple of questions.

110 by weight or volume?

Bullet fit? How tight are your bullets to the bore?

What are your velocities averaging? I have some very old 777 and would like to compare velocities.

I have a 54 Thumper project to get back to,[24" 1-36 twist] been looking at the Accurate 54-477S mold.

I may try some NE 485s in .542.
A .541 gage pin will slide in, but the .542 won't.

Thanks, for your time.

No BS

https://www.muzzleloadingforum.com/threads/finished-the-thumper-project.167020/
https://www.muzzleloadingforum.com/...arbine-velocity-results-chronographed.159742/
By volume, using. . 542 ne, they engrave on loading. The links will answer most of your questions.

 

[BS]

https://www.muzzleloadingforum.com/...arbine-velocity-results-chronographed.159742/
By volume, using. . 542 ne, they engrave on loading. The links will answer most of your questions.

Thank You,
I did a search, cause I remember more info., but didn't find it.
I will have to get some T7 fff, it is much faster than my 90FF Goex.
Did the Magneto speed affect the point of impact?

 

[chorizo]

Thank You,
I did a search, cause I remember more info., but didn't find it.
I will have to get some T7 fff, it is much faster than my 90FF Goex.
Did the Magneto speed affect the point of impact?

No. But my procedure was as follows: at 50 yards initial sighting, accuracy estimate and velocities. If I found a load that met my velocity requirements and showed promise in accuracy then to 100 yards for accuracy development
Took the accurate load and did a 3 rd velocity check.

I set parameters.. Min retained velocity at 125 yards (which gave me my min MV) , min energy (ftlbs) at 125 yards and min accuracy at 100 yards.