At Home Rifling

 



Here is the rifling button (at top) and the steel rods to hammer the button through the barrel.

The rifle barrel is 22 cal, really about 0.216 or 0.217 by my measurements,

the button is 22cal and the steels rods are approx. 0.20 to slide easily through the barrel.

It twist clockwise as it moves down the barrel.

https://www.ebay.com/itm/Rifling-Buttons-Spiral-Reamer-Tungsten-Alloy-Novice-Use-Prevent-Break-Style-A/282827051714?ssPageName=STRK%3AMEBIDX%3AIT&var=582185897573&_trksid=p2060353.m2749.l2649



Here's the website on Ebay, it's seller is named "riflingbutton", there are other sellers, one for much cheaper, but I cannot locate it right now. I'll let your know if I find it!



I started from the muzzle end because I thought hammering with the the rifle half-cocked would put too much strain on the linkages. Measure your bore VERY CAREFULLY!

I ordered a 5.5 mm button and had to diamond file it down to 5.45-5.46 to get through the barrel, the custom buttons are not returnable!


To my surprise, the barrel on the Gamo shotgun was at least a 1/2 inch diameter of steel. I initially thought is was lined with maybe 1/8 of steel since it was never meant to be rifled.

I put several cleaning pellets into the breech before I started to push the rifling button through so that no shavings would get into the air chamber.

The one I bought was labeled 5.5 mm by 12, meaning one rifling rotation in 12 inches, AND I had to file it down, see above, to get it through the barrel, with silicone lube. But definitely worth the trouble!

Found it, you might want to try this guy. "Baandgood.com"

https://www.banggood.com/5_5mm-9_0mm-Rifling-Button-12-Flutes-Hard-Alloy-Chamber-Helical-Machine-Reamer-Tool-p-1315906.html?gmcCountry=US&currency=USD&createTmp=1&utm_source=googleshopping&utm_medium=cpc_union&utm_content=2zou&utm_campaign=ssc-us-en-all&gclid=EAIaIQobChMIleirv4Xf3gIVA49bCh3_EQPFEAQYASABEgIE3fD_BwE&ID=534777&cur_warehouse=CN

sent you a PM