A quick one for those who may know...
One of my old Marlins is a typically over bored specimen and the mould I have for it drops the bullets as it's supposed to, so it leaves the performance down range, somewhat lack lustre. Speaking with a couple of the blokes about this, the subject of custom moulds comes up, then one of the old boys mentions that "opening up" a mould to the required diameter was regular practice "back in the day"...
Anyone know of anyone doing this in the UK?
"Opening" a mould up....?
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All handloading data posted on Full-Bore UK from 23/2/2021 must reference the published pressure tested data it was sourced from, posts without such verification will be removed.
Any existing data without such a reference should be treated as suspect and not used.
Use reloading information posted here at your own risk. This forum (http://www.full-bore.co.uk) is not responsible for any property damage or personal injury as a consequence of using reloading data posted here, the information is individual members findings and observations only. Always verify the load data and be absolutely sure your firearm can handle the load, especially older ones. If in doubt start low and work your way up.
"Opening" a mould up....?
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?
Guns dont kill people. Dads with pretty Daughters do...!
Guns dont kill people. Dads with pretty Daughters do...!
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mag41uk
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Re: "Opening" a mould up....?
You can do it yourself quite easily.
Have a look on castboolits for "beagling".
One easy way is to use self adhesive aluminium foil stuck to one face of the mould.
Sounds like lead would drip everywhere and out of round boolits appear but it does actually work.
The other way is to cast a boolit and put in a shank of some sort while the lead is still liquid,self tapping screw etc.
Chuck the resultant "tool" in a drill and using tooth paste as a cutting agent gently "whizz" the cavity.
You can "squidge" the boolit with a hammer to enlarge its diameter a few thou.
These methods vary according to mould material.
The foil method is good as you still have a standard mould.
HTH
Tony
Have a look on castboolits for "beagling".
One easy way is to use self adhesive aluminium foil stuck to one face of the mould.
Sounds like lead would drip everywhere and out of round boolits appear but it does actually work.
The other way is to cast a boolit and put in a shank of some sort while the lead is still liquid,self tapping screw etc.
Chuck the resultant "tool" in a drill and using tooth paste as a cutting agent gently "whizz" the cavity.
You can "squidge" the boolit with a hammer to enlarge its diameter a few thou.
These methods vary according to mould material.
The foil method is good as you still have a standard mould.
HTH
Tony
Re: "Opening" a mould up....?
I have been reading up on making custom moulds. I would not mind giving it a go. I am not set up for it at the moment but I am working on it.
Re: "Opening" a mould up....?
Making a mould or opening one?
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?
Guns dont kill people. Dads with pretty Daughters do...!
Guns dont kill people. Dads with pretty Daughters do...!
-
dromia
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Re: "Opening" a mould up....?
How much bigger does the boolit need to be?
Come on Bambi get some
Imperial Good Metric Bad
Analogue Good Digital Bad
Fecking stones
Real farmers don't need subsidies
Cow's farts matter!
For fine firearms and requisites visit
http://www.pukkabundhooks.com/
Re: "Opening" a mould up....?
2 thou
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?
Guns dont kill people. Dads with pretty Daughters do...!
Guns dont kill people. Dads with pretty Daughters do...!
-
dromia
- Site Admin
- Posts: 20226
- Joined: Sat Nov 06, 2010 4:57 am
- Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
- Location: Sutherland and Co Durham
- Contact:
Re: "Opening" a mould up....?
Aye beagling is the way to go for ease.
http://www.castpics.net/subsite2/HowTo/Beagling.pdf
I can send you some tape if you need it.
http://www.castpics.net/subsite2/HowTo/Beagling.pdf
I can send you some tape if you need it.
Come on Bambi get some
Imperial Good Metric Bad
Analogue Good Digital Bad
Fecking stones
Real farmers don't need subsidies
Cow's farts matter!
For fine firearms and requisites visit
http://www.pukkabundhooks.com/
Re: "Opening" a mould up....?
Adam,
That sounds just what I'm looking for! I know Tony mentioned it earlier, but what a "smoking pack hound" had to do with it, I wasn't sure....
I take it you have done this before? Silly question I know, but yes please, if you could send some tape, at least then I'll know I have the right stuff! Do you still have my address?
That sounds just what I'm looking for! I know Tony mentioned it earlier, but what a "smoking pack hound" had to do with it, I wasn't sure....
I take it you have done this before? Silly question I know, but yes please, if you could send some tape, at least then I'll know I have the right stuff! Do you still have my address?
In 1978 I was told by my grand dad that the secret to rifle accuracy is, a quality bullet, fired down a quality barrel..... How has that changed?
Guns dont kill people. Dads with pretty Daughters do...!
Guns dont kill people. Dads with pretty Daughters do...!
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dodgyrog
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Re: "Opening" a mould up....?
I believe Beagle is the manufacturer of the exhaust tape used to do the Beagling with. I may be wrong, but I think that's the case.Sim G wrote:Adam,
That sounds just what I'm looking for! I know Tony mentioned it earlier, but what a "smoking pack hound" had to do with it, I wasn't sure....
I take it you have done this before? Silly question I know, but yes please, if you could send some tape, at least then I'll know I have the right stuff! Do you still have my address?
Purveyor of fine cast boolits.
All round good guy and VERY grumpy old man.
All round good guy and VERY grumpy old man.
-
dromia
- Site Admin
- Posts: 20226
- Joined: Sat Nov 06, 2010 4:57 am
- Home club or Range: The Highlands of Scotland. Cycling Proficiency 1964. Felton & District rifle club. Teesdale Pistol and Rifle club.
- Location: Sutherland and Co Durham
- Contact:
Re: "Opening" a mould up....?
It is called Beagling after John Goins the chap who developed the method and wrote the article I posted from Cast Pics, Beagle is his forum name on Cast Boolits.
Come on Bambi get some
Imperial Good Metric Bad
Analogue Good Digital Bad
Fecking stones
Real farmers don't need subsidies
Cow's farts matter!
For fine firearms and requisites visit
http://www.pukkabundhooks.com/
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