CraigC
Sixgun Nut
Pedersoli makes the Uberti 1886.
The Miroku's are fine guns, IF you are not bothered by the rebounding hammer and tang safety that makes it a bit problematic to mount a tang sight.
Pedersoli makes the Uberti 1886.
They measure it. Take your cleaning rod and wrap a patch around the jag. Use enough patch that it is a tight fit in the bore. Put a cartridge in the chamber (or a non primed cartridge with a bullet in it for the squeamish). Now, push the patch down the bore until you hit the bullet. Mark the rod so you can see it. Withdraw the patch. The rod should rotate. When you see your mark on the bottom of the rod, measure the distance from the muzzle to the mark. Multiply times two and that is how long it takes your rifling to make one complete turn. If your barrel is long enough, you can continue retracting the patch until the rod makes on full turn, based on your barrel length. When your mark is once again TDC, measure from bore to mark. That is the length needed for one complete turn.300 gr8 hornady with 5744,4895 or benchmark for 1900 fps is what I settled on.
I looked in my barrel and it didn't say 1 in 20. Where are those fellas seeing that??
I know but they said they looked inside.They measure it. Take your cleaning rod and wrap a patch around the jag. Use enough patch that it is a tight fit in the bore. Put a cartridge in the chamber (or a non primed cartridge with a bullet in it for the squeamish). Now, push the patch down the bore until you hit the bullet. Mark the rod so you can see it. Withdraw the patch. The rod should rotate. When you see your mark on the bottom of the rod, measure the distance from the muzzle to the mark. Multiply times two and that is how long it takes your rifling to make one complete turn. If your barrel is long enough, you can continue retracting the patch until the rod makes on full turn, based on your barrel length. When your mark is once again TDC, measure from bore to mark. That is the length needed for one complete turn.
Kevin
Nobody "looks" at the inside of a barrel and can then tell you the twist rate.they looked inside.
No but you can look down one and tell the difference between a 1-38" and a 1-20".Nobody "looks" at the inside of a barrel and can then tell you the twist rate.
The manufacturer either lists it on a data sheet/stamps on the barrel* (and you trust him)...
...or you do some "patched-cleaning rod" variation of what StrawHat said above.
* ofttimes AR barrel makers will do that, stamped near the muzzle
Go for 100% cotton onionskin....he biggest problem I've found is a lack of different thicknesses of paper. Almost nobody is making anything other than 20 pound copy/ computer paper.
Just so....but you can look down one and tell the difference between a 1-38" and a 1-20".
Good God manNobody "looks" at the inside of a barrel and can then tell you the twist rate.
The manufacturer either lists it on a data sheet/stamps on the barrel* (and you trust him)...
...or you do some "patched-cleaning rod" variation of what StrawHat said above.
* ofttimes AR barrel makers will do that, stamped near the muzzle