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Author Topic: does NEF make barrels ????  (Read 1975 times)

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Offline MSP Ret

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does NEF make barrels ????
« Reply #30 on: October 12, 2004, 03:52:06 PM »
I think others here have used a soft lead slug pushed through the barrel to upset and fully engage the rifling. I read something of this in the centerfire section in a post either by, or responded to, by Fred M....<><.... :grin:
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Offline Fred M

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does NEF make barrels ????
« Reply #31 on: October 13, 2004, 01:06:33 PM »
ScatterGunner.
It is not a big deal to slug a bore.  You need a slug 1/64" bigger than bore.
Say 30 cal. you want a 5/16" slug which is .3125". You can make a slug by drilling a hole of 5/16 in two hard wood blocks 3/4" deep. Aluminum is better.

Melt some pure soft lead and pour it into your mould, make  four slugs.

Clean the bore and give it a coat of light grease. With wood dowel or a brass rod drive the slug into the bore. One from the front and on from the back drive the slugs out to get dimensions on both ends. But only one at a time.

Take one new slug and  drive into the back and push it all the way to the front and feel the high or low spots. If it is a high spot go a bit further and then back out the slug and see how much smaller the slug is. Do the same from the front. Any time you have a tight spot take a measurement to know where the tight spot is in case you want do some spot lapping.

Never lapp on the ends. A lapp has to be 3" long and poured into a heated  bore with an embedded jag on a cleaning rod. Use 400 grit paste for spot lapping.  The lap is removed from the rod and charged between two steel plates with grit. After 5 strokes the lap is rotated to the next groove until you have rotated the lap however many grooves you have.
Then start over again with a new lap if you are still tight or rough.

After a halve rotation  you keep measuring with a new slug. This is a slow process less is better too much is bad news. Can you ruin a bore, you bet you can. But noy with slugging. If you have an old barrel learn on it.

You can see why a perfectly lapped barrel costs a lot of money, more than a complete Handi. Forget about lapping if the the barrel is over size.

Fred M.
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Fred M.
From Alberta Canada.

Offline ScatterGunner

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does NEF make barrels ????
« Reply #32 on: October 18, 2004, 08:25:00 AM »
it arrived today !!!

my shiny new 223 with iron sights showed up a few minutes ago on my doorstep. this will be my light, quick, little rifle for dispatching any pests that wander too close to my wifes collection of dachshunds !

i didnt even to convince the wife that "we" needed this gun !, and, i didn't waste any car parts labels....

sg
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there''s room for all of God''s fauna and flora, right on my dinner plate!
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