View Full Version : Bet way to close a base pin hole
peter nap
11-08-2009, 09:55 PM
I want to try to cast a Lyman Sabot slug, with the base pin removed and the hole sealed.
Yeah, I know...It's another of my stoopid ideas[smilie=p:
Anyway, I've had so much fun loading them backwards and having super hollow points and sticking 45 cal balls in the hollow for 650 grain slugs, I thought I'd try one with a really long nose.
If it works, I'll just get a short base plug made.
For the test, I'm not sure what to plug it with except maybe a dowel. Any better idea.
BCall
11-08-2009, 10:09 PM
If I was serious about it, I'd just have an extra base pin made for it that was flat. That way I know I wouldn't do anything to my mold. Billy
HeavyMetal
11-08-2009, 10:14 PM
Are you talking about having the "boolit" itself stick down into the hole left by the base pin?
Sounds like a king sized semi wadcutter.
Bite the boolit (please pardon the pun) and get the short pin made with a possible radius on the end rather than just a flat point, a "cowboy" slug you might say.
Anything else you try to shove in there is either gonna burn or leak hot lead, not good ideas!
peter nap
11-08-2009, 10:26 PM
Are you talking about having the "boolit" itself stick down into the hole left by the base pin?
Sounds like a king sized semi wadcutter.
Bite the boolit (please pardon the pun) and get the short pin made with a possible radius on the end rather than just a flat point, a "cowboy" slug you might say.
Anything else you try to shove in there is either gonna burn or leak hot lead, not good ideas!
Yep, giant semi wadcutter! I figure it will be over 700 grains
peter nap
11-08-2009, 10:31 PM
BTW, who make the base pins?
Buckshot
11-10-2009, 02:51 AM
...........You could have a base pin plug made. Then, the base plug is D&T'd for a suitable screw. Then on the base of one of the blocks toward the outside edge you D&T another hole. A bar then spans the distance and it has 2 holes for screws to pass through (base plug and mould block) effectively retaining the base plug.
Depending upon the width of the base plug, an alternative might be to drill a hole from the side of the mould into the base plug. The tap the hole in the base plug, run a screw of suitable length through the hole into the baseplug. This would draw the base plug up tightly against one side of the mould.
...............Buckshot
peter nap
11-10-2009, 11:53 AM
...........You could have a base pin plug made. Then, the base plug is D&T'd for a suitable screw. Then on the base of one of the blocks toward the outside edge you D&T another hole. A bar then spans the distance and it has 2 holes for screws to pass through (base plug and mould block) effectively retaining the base plug.
Depending upon the width of the base plug, an alternative might be to drill a hole from the side of the mould into the base plug. The tap the hole in the base plug, run a screw of suitable length through the hole into the baseplug. This would draw the base plug up tightly against one side of the mould.
...............Buckshot
Thanks Buckhot. I figured you could make one but I wanted to get my ducks in a row before emailing you about it.
The size of the nose is important and that's why I wanted a temporary plug to try.
I've been gluing round balls in the hollow of the inverted slug and it works pretty well. I just need to keep trying different sizes until I find the right weight/velocity combo that stabalizes at 75 yards.
A .45 ball bring the total weight to about 650 grains and a .58, over a thousand. About 720 seems right. I just need to find out how far to extend the nose of the casting to get that.
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