22-250 SLUGGED!!!!

[mikeinct]

Well it is a solid 224 from end to end..thanks for all the help...Still Squeaks to clean it...one issue resolved..time to start trying new loads...found some OLD 22 caliber rimfire to pull the bullets out of..For the muzzle end I just tapped it in with a bit of hard wood then reversed it with the pusher on the cleaning rod...The second bullet I upset with a tiny hammer got it up over .230 lubed it with Imperial wax & started it in the breech end..a little judicious tapping & down the clean bore it went..pressure needed to move it did not vary a bit..Extremely uniform feel from end to end..A jewelers loupe to check the muzzle & the slug ...it all looks good..no hard spots or loose places..muzzle looks square & true....pic attached..I still think it would have been fun to fire squib loads into water & then mic them.....CSI CT,that was cute Dave....jobs done, time to move on with this barrel..mike in ct..edit added sunday am..I looked at the muzzle again in better light..many striations down in the grooves..looks like sanding against the grain...I'd like to put some extremely fine jewelers polishing compounds on a tight patch & try a few strokes in that bore..who has used JB paste or any fine grinding compounds in such a barrel before...Results??...TRY it Or NOT???..If it seems better & has not ruined the barrel..I was going to impregnate the surface of some bullets with the 800 grit tripoli 10 rds..then do 20 with the 1200 grit rouge..I'd fire them using only a reduced charge cleaning well between grits..& then really well before shooting real ammo..Your thoughts gentlemen ?? mike in ct

 

[Wild_Bill]

Hi i help with barrel lapping of a brand or Target barrels here in Australia. The first thing is we never lap a chambered barrel because it can ruin the throat and crown of the barrel if you have fine marks they will likley just increase the rate of fouling in the barrel. some barrels with radial machining marks shoot very well. i would just get a plastic brush or a worn bronze brush and wrap a tight cloth around it lubricate it well with machine oil then use some JB's on it and stroke the full length of the barrel this will help remove the fouling and smooth the barrel over time. Rem Clean will also do this but it is more aggressive and if care is not taken with it it will impregnate into your rod coating and lap out the lands this has been verry good for the aftermarket barrel manufacturers as a lot of people have ruined a good barrel in 300 rounds bu cleaning to aggresively. Just shoot it with Quality components and see how it go's if it will not shoot try some final finish but i would only use them in barrels as a last resort.

Cheers Bill
Australia

 

[mikeinct]

This barrel is chamhbered & crowned..I peeked in the first half inch with a 10 X jewelers loupe...Looked scary in the grooves..the tool marks run across the grain..they are deep & still sharp..So the general consensus here is live with it for a while ?? then after another hundred rounds maybe two hundred ..fire those coated bullets thru her at reduced velocity...You guys are right about the lands..They are pretty shallow I can see how easy it would be to buff off the best part of the barrel before getting at the part causing the fouling & squeaking while cleaning..first rule of repair DO NO HARM ...thanks, mike in ct