50BMG bullet pen...How I do It...heavy picts

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bruce119

Member
Joined
Jul 30, 2007
Messages
2,978
Location
Franklin, NC, USA.
This is an overview how I make the 50 cal bullet pen
I use once fired 50 cal brass shells & Tracer rounds (projectiles)

50BMG.jpg
The Draft

001.jpg
001-Drill out incendiary 23/64 bit

002.jpg
002-Melt out lead

003.jpg
003-Drill out projectile point

004.jpg
004-Chamfer inside projectile with 3/16 bit (just a kiss to chamfer)

005.jpg
005-Home made mandrel

006.jpg 007.jpg 008.jpg
009.jpg 010.jpg
006-010-Chuck up mandrel and sand I use 400 and then 600

011.jpg 012.jpg
011-012-Use mandrel to polish, I use a black or brown rough and then a white diamond to finish, Brasso works great as a final polish

013.jpg
013-Clean out inside of projectile

014.jpg
014- Parts laid out

015.jpg
015-Notice 1/4" dowel lower right

016.jpg
016-Glue in 1/8" (plug) into bottom of case receiver

017.jpg
017-Glue in .385 wood w/7mm tube installed after glue dries press in trans.

0018.jpg
018-Notice step drill on case receiver, this lets the 7mm tube & trans. slide in without restriction

019.jpg
019-Notice wood receiver is loose in brass case

020.jpg
020-Assemble projectile w/trans into case receiver

021.jpg
021- Check fit – Assembly Projectile & lower case receiver (#020) should fit into brass case. Make adjustments as necessary when satisfied glue in place. To glue add epoxy to the inside of the empty brass case. You want about 1-2ml enough to hold tight but not too much it will overflow when you insert your projectile w/lower case receiver (#020) stand on end and let dry

022.jpg 023.jpg
022-023-Completed pen

All questions and comments wellcome...
Have Fun
Bruce Egolf ... bruce119
.
 

ALA

Member
Joined
Jan 21, 2012
Messages
343
Location
Bassett, Va.
Thanks for posting Bruce. This is basically the same way I do it. I used the instructions from the library (thanks Les) which are similar to yours.
 
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