Re: better acuracy?
IF this rifle will be converted to single shot and left that way, I would highly recommend filling the mag box. Being a BDL this is a bit trickier but not much. Generally how I do it is to bed the rifle in two parts.
First is the standard bedding job. THen I clean up the bedding compound of that job and then reinsert the barreled receiver in the stock.
Depending on what kind of stock you are using will determine if the stock should be pillar bedded or skim bedded only.
ONce this is finished I remove the floorplate of the rifle but then reattach the receiver screws to the receiver to hold the barreled receiver solidly into its bedding.
First thing to do is make a filler block to take up most of the volume up in the mag well. IF you fill this solid with bedding compound it will take ALOT of compound to get her filled up.
I generally use some hardwood scrape. Oak works great. I generally do not like to use the softer woods but in all honestly they will work well also. This is just a filler to take up the majority of volume in the mag well.
I then fit the filler block using a belt sander so that it easily fits in the mag well with a bit of clearance(1/16" or so) to the sides of the stock.
With this block made and sized and ready to go I move on to the actual bedding of the mag well.
Very important. Pull the barreled receiver out of the bedding. THe single shot insert should be installed before any bedding is performed as well. Apply another coat of release agent on the single shot insert area and anywhere else the bedding compound may contact. Put back in the stock and secure with the action screws. IF you can do this with the floorplate off it is best.
The rifle is inverted in a rifle cradle and then I will mix up some marine tex compound and put a 3/8" layer against the bottom of the receiver through the mag well opening. Work it in good to get all the air pockets out from between the receiver/insert and the bedding compound.
Then take your filler block and insert it into the mag well. Push the insert down until the bedding compound begins to push up around the block but do not make contact with the receiver. We want the block to float in the middle of the bedding compound.
After this you can go one of two ways,
One. You can let things set up like this so that you do not have to worry about the filler block moving any as you fill in around the block with bedding compound.
Two, you can carefully fill around the block with bedding compound making sure the filler block does not work its way through the compound and can be seen when all if set up in the bedding when the stock is pulled off the rifle.
TO finish up, once bedding compound is filled in all around the block apply a coat on top of the block to cover it up.
I have a mill at my disposal so I generally fill the mag well totally up and then when it cures I will mill the bedding compound out for a clean professional looking finished produce.
If you do not have a mill. It may be easier to just top the block off with enough to cover the block but still allow the floorplate to be installed properly. Just smooth off the compound as even as possible for a good looking finished product.
Some will fill the mag well up totally with bedding compound, spray the floorplate with release agent and bolt her down. I have found this to cause several problems so I prefer not to do it that way.
Yes, I feel this adds alot to the rigidity of the rifles system. The bedding surface area is easily increased by 5 times compared to an open mag box. PLus you get the advantage of eliminating the stock mag wall flexing under recoil.
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