yippy
- Thread starter john480
- Start date
SakoSteve270wsm
Handloader
- Apr 17, 2007
- 330
- 0
Let us know how it shoots ! 
- Thread starter
- #3
- Nov 4, 2004
- 25,342
- 8,903
john480
Welcome to the forum.
Congratulations on the M48. Let us know how she shoots.
JD338
Welcome to the forum.
Congratulations on the M48. Let us know how she shoots.
JD338
- Thread starter
- #5
cold_hunter
Beginner
- Jan 26, 2009
- 85
- 0
how does nosler suggest you break that M48 in. i would use the longest bullet i could find and clean between every shot up to like 25. and i mean clean to bare steel. then between 3 shots for the remainder of the second box, that should smooth things out. but that is like a custom gun so maybe they lap the barrel a little for you to remove tooling marks and mostly rough spots in the throat area. let me know what they suggest if you can
Antelope_Sniper
Handloader
- Jan 25, 2008
- 2,618
- 0
For the price, I imagine the nosler 48's have a custom hand lapped barrel. If that is the case, you patches will probably come back devoid of any copper after about 8-10 fire one and clean sessions ( some times in as little as 5-6). After about 5 fire 2 and clean sessions, you will probably be clear of copper again. Hand lapped barrel really break in nice 8)
The barrels are hand lapped but a good break-in on a new barrel never hurts. Here's the info from our break-in sheet:
Shoot one, clean, for first ten rounds.
Shoot three, clean, for next fifteen rounds.
shoot five, clean, shoot a fouler round, and then shoot five for accuracy.
Allow barrel to cool to ambient temperature before shooting each series of break-in rounds to avoid unnecessary throat erosion. When testing a new load, it is necessary to clean after each powder change.
When Cleaning:
DO use a good coated cleaning rod.
DO use a bore guide.
Do Clean from the chamber end.
DO NOT use a stainless bore brush.
DO NOT leave strong ammonia cleaning products in your bore for extended periods of time -- additionally, do not allow solvents to contact stock as it will remove the finish!
DO NOT shoot your barrel hot enough to brand cattle!
Clean powder residue from bore using Shooter's Choice or Butch's Bore Shine following instructions on bottle.
Follow with Montana X-Treme Copper Killer to remove copper fouling. Instructions on bottle work the best.
Follow with a second Shooter's Choice or Butch's Bore Shine patching, then dry patch.
Finish with Tretra Gun Oil or Montana X-Treme Bore Conditioner Accuracy Gun Oil. Shooting a dry bore will greatly promote copper fouling.
Once the barrel is broken-in, remember to clean your barrel after every 20-rounds to keep your accuracy optimal. A dirty bore is a primary cause of poor accuracy.
Hopefully that helps! :grin:
Shoot one, clean, for first ten rounds.
Shoot three, clean, for next fifteen rounds.
shoot five, clean, shoot a fouler round, and then shoot five for accuracy.
Allow barrel to cool to ambient temperature before shooting each series of break-in rounds to avoid unnecessary throat erosion. When testing a new load, it is necessary to clean after each powder change.
When Cleaning:
DO use a good coated cleaning rod.
DO use a bore guide.
Do Clean from the chamber end.
DO NOT use a stainless bore brush.
DO NOT leave strong ammonia cleaning products in your bore for extended periods of time -- additionally, do not allow solvents to contact stock as it will remove the finish!
DO NOT shoot your barrel hot enough to brand cattle!
Clean powder residue from bore using Shooter's Choice or Butch's Bore Shine following instructions on bottle.
Follow with Montana X-Treme Copper Killer to remove copper fouling. Instructions on bottle work the best.
Follow with a second Shooter's Choice or Butch's Bore Shine patching, then dry patch.
Finish with Tretra Gun Oil or Montana X-Treme Bore Conditioner Accuracy Gun Oil. Shooting a dry bore will greatly promote copper fouling.
Once the barrel is broken-in, remember to clean your barrel after every 20-rounds to keep your accuracy optimal. A dirty bore is a primary cause of poor accuracy.
Hopefully that helps! :grin:
cold_hunter
Beginner
- Jan 26, 2009
- 85
- 0
I have a Model 7 260 with a pencil thin barrel. I broke it in. the hard way, the right way. All i had for a cleaner was sweats and kroil, and i used JB paste. It was slow and people thought i was nuts i would just drive out of town and shoot at nothing then go home and clean for ever to get it clean. Ill tell you that those stainless barrels that come from the factory are rough cause it took like a garbage bag of patches to get the job done. Now that little barrel shoots my handloads (Noslers most accurate loads) very well. My 100gr BT load on a bad day shoots .5 inch. I havent tried to put the PT on paper yet but im hoping for the best. my point is if you treat your gun right it will return it.
- Oct 30, 2004
- 24,344
- 3,185
Nosler4":3s8ivvq2 said:
There you go buddy.....expert advise.
