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Posted: 1/15/2006 5:24:38 PM EDT
[#1]
Borrow one from somebody that already bought it. 
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Posted: 1/15/2006 5:25:54 PM EDT
[#2]
Good idea, but I dont know anyone close who has one..
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Posted: 1/15/2006 5:26:09 PM EDT
[#3]
Just tie a bunch of fishing weights to the rear sling swivel.
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Posted: 1/15/2006 5:27:46 PM EDT
[#4]
Cast the hole with plaster, then use that to form your sand.
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Posted: 1/15/2006 5:28:07 PM EDT
[#5]
You just need something that has the approximate shape so you can create a mold to cast to, is that right? Can you cut something to the right shape/size? Wood or some other material?
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Posted: 1/15/2006 5:29:26 PM EDT
[#6]
I did this a few years ago.
I put a plastic bag in the cavity and filled it with plaster of paris. Pulled it out and made a mold out of 1.25 aluminum angle on an aluminum plate. I used aluminum foil to cover the gaps. I then held the nose up with a few washers and filled it with lead. I wound up casting somewhere between 50 and 100 of them. SRM |
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Posted: 1/15/2006 5:30:23 PM EDT
[#7]
How would I get the plaster to release easily? |
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Posted: 1/15/2006 5:31:29 PM EDT
[#8]
i filled mine with #8 lead shot and closed the door.
it was plenty heavy. |
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Posted: 1/15/2006 5:31:37 PM EDT
[#9]
Line the hole with wax paper? |
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Posted: 1/15/2006 5:32:14 PM EDT
[#10]
Im confused? You used a bag with plaster then used aluminum angle? Elaborate some more? |
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Posted: 1/15/2006 5:56:46 PM EDT
[#11]
Plaster sounds messy.
Why not use a sheet of saran wrap as a liner and fill the hole with Play-Doh. The saran wrap will keep the PD from sticking to the inside.....unwrap and voila' , you've got a mold. Put the PD in the oven if you want it hard like plaster. I've never tried this , but it seems like an easier way , plus you won't have to explain what all that white stuff is all over your rifle. |
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Posted: 1/15/2006 6:44:10 PM EDT
[#12]
I just filled mine with lead shot and compressed a piece of closed cell foam over the trap door end to seal it.
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Posted: 1/15/2006 6:46:26 PM EDT
[#13]
What for?
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Posted: 1/15/2006 6:52:34 PM EDT
[#14]
Target rifle. More mass = less movement. |
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Posted: 1/15/2006 6:53:43 PM EDT
[#15]
To add weight/balance. |
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Posted: 1/15/2006 6:56:16 PM EDT
[#16]
I bought one for $10 in a junk box at a gun shop that sold only "fine hunting arms".
They had no fucking clue what it was. |
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Posted: 1/15/2006 7:08:40 PM EDT
[#17]
-------------------------------------------------------------------------------- Quoted: What for? -------------------------------------------------------------------------------- then Sniper_wolf: To add weight/balance. My understanding, and I am not a high-power competitor, is that the buttstock weight is to balance the weight under the handguards. The handguard mass is what lowers the first "swing" mode, making for a more stable firing platform. The buttstock weight is semi-required to balance out the rifle. The buttstock mass by itself would be somewhat pointless. I am open to correction by someone with more experience in this matter, however. |
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Posted: 1/16/2006 6:33:56 AM EDT
[#18]
I used the bag with plaster to get the 3-dimensional shape of the cavity. I put the dried plaster on the aluminum sheet and went around the perimeter with a sharpie. I used the sharpie lines as construction lines for attaching the aluminum angle. Actually, I covered the lines with the angle to make sure the wedge would be small enough to fit the cavity. IIRC I used pop rivets to attach the angle to the sheet. Then I lined the mold with aluminum foil to seal it. The nose of the wedge is thinner than the base, so I used a few washers under the nose of the mold. I would pour to a scribed line on the angle. I used aluminum because lead doesn't stick to it and it is easier to bring up to temperature. I would pour one, take it outside and dump it in the snow and pour another. I found some in the spring when the snow bank melted.
SRM The play dough idea would work too... |
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Posted: 1/16/2006 6:47:53 AM EDT
[#19]
Yup... most HP shooters have them.
Makes it easier to hold the rifle in the standing postion as the rifle is not front heavy ,but evenly ballanced. Some guys like to put weights under the handguards, but I think that is going overboard. Also..be damned carefull with molten lead. The slightest bit of moisture (damp casting spoon or a drop of water falling into your pot) and your pot could explode, leaving molten metal all over your face...
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Posted: 1/16/2006 6:53:23 AM EDT
[#20]
Just oil the inside of the cavity and pour the plaster in. Plaster won't stick. Or, oil and use clay/play doh. Then make a mold out of plaster and you can re-use it all you want...
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Posted: 1/19/2006 7:07:27 AM EDT
[#21]
Okay used plaster to cast the buttstock cavity and it worked well. Not I need ideas to make a mold.
I was thinking damp sand in a bucket.. maybe clay mold.. Any ideas? |
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Posted: 1/19/2006 7:16:49 AM EDT
[#22]
Don't use damp (as in water) sand. Casting sand (as I recall) has an oil base to it. Take it for what it's worth, as I have not done any sand casting since my school days. 
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Posted: 1/19/2006 9:12:08 AM EDT
[#23]
Dampen sand with some light motor oil? |
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Posted: 1/19/2006 9:14:40 AM EDT
[#24]
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Posted: 1/19/2006 9:31:31 AM EDT
[#25]
The safer types of casting sand are silica mixed with oil, sometimes clay or a type of resin. Just trying to steer you away from a possible explosion. |
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Posted: 1/19/2006 10:03:19 AM EDT
[#26]
I'm thinking I can make a mold of plaster. Wrapping the original in saran wrap and making a mold using a shoe box as a form?
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Posted: 1/19/2006 10:06:51 AM EDT
[#27]
+1 |
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Posted: 1/19/2006 1:23:17 PM EDT
[#28]
Lead shot souds great but what happens if the door pops open accidentally or something like that!
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Posted: 1/19/2006 1:26:48 PM EDT
[#29]
Guess you now know why they can charge $20 bucks for a stock weight?  |
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Posted: 1/19/2006 1:40:57 PM EDT
[#30]
I tried that first. Plaster retains enough water that I would advise against it. Plus, the product is very rough. This is the reason I went with aluminum angle attached to an aluminum base plate. Steel would work as well, just coat the mold with soapstone as a release agent. SRM |
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Posted: 1/19/2006 4:11:36 PM EDT
[#31]
opens accidentally?  i have to open mine with a screwdriver. no way it is ever just going to pop open. but if it troubles you just fill it full and dribble a little candle wax on the shot to seal them in. |
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Posted: 1/19/2006 5:19:55 PM EDT
[#32]
Dampen the shot lightly, with water with a few drops of dish soap. Pour it in. Holding barrel down pour in some 50/50 diluted white glue, artists matte medium, etc. Tap it several times so it settles in, the glue/matte medium will bond the shot together. You could do this in several stages to work up to the weight you want.
Using plaster that hasn't been baked long enough to get ALL the moisture out or damp sand is asking for a nasty explosion of steam through the molten lead. (Been there, done that, not going to do it again And that plaster mold had been baked for some time) |
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Posted: 1/19/2006 5:21:57 PM EDT
[#33]
If you want to use shot, bb's or bullets, just put them in a ziplock bag or an old sock and stuff them in the stock.
It isn't rocket science. SRM |
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Posted: 1/19/2006 5:27:22 PM EDT
[#34]
Plaster is FINE if you bake the mold at 300 F for a few hours and then use vacuum casting. For this, you have to design the mold flask so you can hook a vacuum pump to it. Best bet is to cast the cavity in wax, then attach a 1/2" "tree" dowel of the wax to this pattern. Sink the pattern in wet plaster (again, vacuum degassing of the plaster yields no voids) in this flask. Let set, bake at 300 F upside down to melt the wax out and dry the plaster. Then put it right side up, hook the vacuum to the flask and pour it. If you put a pan under the flask when baking, you can recover most of the wax. |
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Posted: 1/19/2006 5:32:40 PM EDT
[#35]
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Posted: 1/19/2006 5:34:53 PM EDT
[#36]
If you use damp sand to make a mould, please wait until it drys out all the way before you pour. If you don't there will be unpleasentnss.
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Posted: 1/19/2006 5:39:44 PM EDT
[#37]
+1 I love the way the simplest things get so complicated here… how do some of us get toothpaste out of the tube with out special tools. |
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Posted: 1/19/2006 5:45:27 PM EDT
[#38]
Start your own damn topic.
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Posted: 1/19/2006 5:48:45 PM EDT
[#39]
Bondo. I used to cast all sorts of fishing related lead products (sinkers
 ) in all kinds of interesting shapes and sizes, and found that nothing works better than Bondo for an impromptu mold. I've tried sand, plaster, even cutting holes in aluminum, but for weird shapes, Bondo works great. Plus, a $7 can will make a lot of molds (or fill a lot of bullet holes )
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Posted: 1/19/2006 6:36:44 PM EDT
[#40]
As someone who ditched his wedge weight, in favor of #8 shot, because it was too damn heavy, I think this deserves another requote. |
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