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Post by sabotloader on Jan 18, 2010 17:42:02 GMT -5
Went to the machine shop today and Dave had the two new bushing built for my conversion project. The thought of the project is in combination with the Canadian 209 Coversion - to turn the gun into a clean gun. The first modification is to turn the end of the existing hammer into a firing pin. Second we had to remove some metal from the front face of the bolt to allow room for the bushing. The bushing is drilled in the center to allow the hammer a route to the primer. The face of the bushing now acts as a bolt face holding the primer in the Nipple and preventing blow back pressure from re-Kockinging the action. After installing the .088 bushing we fired 15 primers, using several different brands, in the shop. There was a hint of blow back on the receiver wall and a very little smooge on the bolt face. No material was found on the hammer spring or the scope sitting above the nipple. I am hoping to get to the farm with-in the next day or two do some shooting. I plan on shooting T7 and BH from this rifle. Here is a picture of the most recent work.
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Post by Al on Jan 19, 2010 14:41:06 GMT -5
what diameter did you make your firing pin?
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Post by sabotloader on Jan 19, 2010 15:37:36 GMT -5
Al
Close to the same as a Knight .172 (11/64") and it is 1/2" long...
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Post by sabotloader on Jan 19, 2010 22:00:11 GMT -5
I was unable to get out to the farm this morning to shoot so this afternoon I took the gun out in the shop and shot 10 primers just for drill. This is a picture of the breech area after shooting the primers... It does show some soot and primer residue but nothing like what I might expect....
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Post by screwbolts on Jan 20, 2010 6:59:44 GMT -5
I really like the short section of plastic shot gun case used for a shield.
Ken
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Post by screwbolts on Jan 20, 2010 7:02:05 GMT -5
Is your 209 nipple, on of the aftermarket nipples?
I will be making mine out of a 3/8 NF bolt. It will be fitted to the BP so that the vent liner threads into it also.
I may fit the 209 seat for a small o-ring similar to what is being used in the Huntsman guns.
Ken
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Post by sabotloader on Jan 20, 2010 17:54:35 GMT -5
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Post by screwbolts on Jan 20, 2010 18:37:05 GMT -5
I will be turning/cutting to size the end on the firing pin, IMHO I feel .172 is way to big a hole. and does not adequately support the cup of the primer.
If you were to replace the bushing with a expensive 25 acp Lee shell holder ($2.99)you would no longer need the priming tool it could be turned to fit the bolt just as your bushing has been. contour the face of it to give you more room the prime and deprime.
Why? Take a look at the new Post. :-)
Why did you use the CR sabots with the BH209?
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Post by sabotloader on Jan 20, 2010 22:37:39 GMT -5
screwbolts
Because I was shooting a 41 caiber bullet and I need the CRibs to get the load down the barrel.
Just wanted you to see what was accomplished today.
I had considered a primer hold of some sort but I chose not to use it for to main reason...
1. was clearance the primer inserts so far into the primer cup there would not be room for the primer holder to fit on and around the the nipple and still seat the primer in the nipple.
2. I want to use the capper (primer tool) to insert the primer. I really do not want to handle a bare primer by itself especially in cold weather with golove on or off. It is much easier and quicker for me to insert the capper and primer in the nipple and then remove the capper - close the bolt and ready to shoot. I have a Knight with a NFPJ and handling and dropping primers in the holder is difficult at best in cold or warm weather. The capper is a lot easier + I can find it easier than finding a single primer.
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Post by screwbolts on Jan 21, 2010 8:10:31 GMT -5
Looks like yo have a great conversion here. I will post some photos of my progress soon as I get started and the end results will be the same. Both user friendly rifles.
Great shooting!
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