Necking up 17 WSM to 20 cal. Help!
Nothing personal against the 17 cal. But I think the WSM should have been in 20 cal not 17 cal. A 32 grain 20 cal plastic tip at 2600 fps or 2700 fps makes a lot more sense. So I would like to try a 20 cal out. The problem. The 17 WSM brass is very brittle in the neck and all efforts to neck it up to 20 cal have the same results, a split neck. Would smaller steps have a higher chance of success? Annealing is out of the question. Any other ideas?
To answer camp perry's question on powder charge. I have a reloading program that should give me a starting charge, powder type and an estimated pressure and velocity with key case and bullet information.
To answer camp perry's question on powder charge. I have a reloading program that should give me a starting charge, powder type and an estimated pressure and velocity with key case and bullet information.
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Understand annealing is out, since knocking them over in the water tray would kind of render primer inoperative.... Have you considered hanging them upside down in some sort of rack, heat the necks and then dip them up to the neck to cool?????
If you try it let me know if it works...
JIM...............0 -
How about a "reverse" water quench??
Stand the cases in a tray of cool water just up to the necks. To keep the case/primer compound dry.
Use a old fashion pointed soldering iron. the big heavy type, heated, to insert into the case mouth. Let cool slowly.
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Why is annealing out of the question? You could try and make some 18 and 19 buttons for you die rod. The shank on numbered drills could be made to work. 7/8 - 14 bolts with the # drill bits set in them.
Electric lead pot full of molten lead. Insert neck into lead and count then toss in water.
added There are people that reload rimfire.0 -
Get yourself a 1" diameter Aluminum rod/bar stock. Insert the chamber reamer for the 17WSM, or basically fashion a heatsink, about the thickness of the distance from the rim to the bottom of the shoulder.
put the heat sink in ice water, then over the cartridge, heat the neck, and let cool...repeat the process.
Actually if you were able to get you hands on some 22 CCM, or 17CCM brass, it would make your quest a lot easier, and reloadable.
Best
EDIT 1
You could also fashion a heat sink out of plaster of paris...it would be faster to make them, even though a close fitting aluminum heatsink would transfer the heat quicker.0 -
quote:Originally posted by charliemeyer007
Why is annealing out of the question? You could try and make some 18 and 19 buttons for you die rod. The shank on numbered drills could be made to work. 7/8 - 14 bolts with the # drill bits set in them.
Electric lead pot full of molten lead. Insert neck into lead and count then toss in water.
You do know those are RIMFIRE.
[:0]
ADDED INFO...
Your problem intrigued me, so I went out to my shop and played.
Came up with this...
Took the smallest empty cases I had {.32 sw long} and stood them up in a metal cookie pan. {one with about 1" high edges}.
Then surrounded the cases 1/2 way up with sand, to hold them steady.
Now added water just below the top of the sand, leaving the top layer of sand dry, but covering the bottom of the cases.
The soldering iron was too small of a contact area, so I grabbed some old junk 1/4" drive sockets that fit nicely around the cases.
Heated the sockets really hot and dropped them over the cases to rest on the sand. Like a baking oven!!
I don't know the hardness of your brass, but with a little playing around with temps and time, it may work.
Ley me know if you are as crazy as me to try doing this.[8D]
Don't try to use an open flame of any sort, the heat will funnel down into the primer mix.0 -
seems the case is made from the same case as 27 Cal Nail gun have you thought about necking those down to 20 cal. another question how are you going to come up with a powder charge Weight[?]EDIT if you Google 17WSM it states there the basis for the round is the 27 Cal. Nail Gun I have no first hand Knowledge but I would look into that report. What would be a worry to me would be pressure . Needed to push a heavier bullet rim fire cases by their design have much thinner
HEAD to allow the firing pin strike to Pinch the rim [:0][:0][:0][:0]0 -
You don't have to water quench brass when annealing.
Stand the cases up in water to protect the rim and priming, heat the neck, and let cool.0 -
quote:Originally posted by perry shooter
seems the case is made from the same case as 27 Cal Nail gun have you thought about necking those down to 20 cal. another question how are you going to come up with a powder charge Weight[?]
17wsm is 1.2" long case length. You must have one hell of a nail gun!!!
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