Do a search "bore lapping" also "fire lapping"July 5 2012 at 10:41 AM
|scot laughlin (Login classicalgas)|
Crosman Forum Member
from IP address 126.96.36.199
Response to this may sound stupid
Ignore the tutorials that don't use a lead lap cast on a rod in the bore. With care and time you can lap the bore to a taper, or true it and leave a choke.
If you decide fire lapping sounds worth the risk, take it slow,no more than twenty grit loaded pellets between cleaning and testing, use abrasives intended for the job.
Few production barrels are smooth inside, and even fewer are without tight and loose spots.often the breech area is tighter than other parts, especially break barrel springers
A lapped bore will be more accurate(so long as you don't have a bore with a loose muzzle) and will stay clean and accurate longer.
You can make a ball bearing handle for the lapping rod out of a quick release bicycle hub(ask a bike store for a used one from a throw away wheel) use a length of heavy music wire for the rod, a heavy thrift store spoon and a propane torch to melt used pellets for the lap...the whole setup shouldn't cost over $35
|This message has been edited by classicalgas from IP address 188.8.131.52 on Jul 5, 2012 10:45 AM|