

CJRBOLTGUN1 wrote:As stated, do we as shooters and reloaders overthink the processes and why is that?
I can rattle off a ****** of topics that can get very controversial and at times can nearly end up in full blown fisticuffs: lol:
I 'll start with barrel break in and why,
personally, I think that cut rifling does benefit from a proper break-in procedure whatever that may be, but button rifling does not need it, maybe some sort of variation of sorts to put the barrel through heat cycles what's your thoughts..................


niteowl wrote:OK.
As a commercial shooter (Part time) for some years in the sixties, and as a qualified gunsmith since 1968, and am still licenced as a professional shooter, I have NEVER run in a new barrel.
(I am retiring from the gunsmithing later this month after all those years, when my renewal comes due).
Yes I agree that a hammer forged barrel will be "smoother", but I have used cut too and never found any need to go through the run in process as the accuracy has never changed from before or after. Not saying they do not wear out in time.
Interestingly I originally qualified as a mechanical fitter but spent a LARGE portion of my work was as a mechanic on small and large vehicle engines.
The critical thing with these was the bedding in of the rings after a complete rebuild. Not to smooth out bearings etc but to actually load up the engine to get the rings bedded to prevent excessive oil use.
Any way, if you wish, it will do no harm.
On a separate subject. After MANY attempts to arrange a "business" membership here, that has had NO RESPONSE from the site owners, I will mention my web sites - AUSTRALIAN SHOOTING SERVICES and AUSTRALIAN NIGHT VISION should anybody be interested.

mchughcb wrote:Ask yourself , do you suffer from ocd? Then you will know your answer.



CJRBOLTGUN1 wrote:I only used barrel break-in as a starter, pretty sure there's more than just that,
what about shoulder bump , twist rate, case cleaning versus no cleaning , neck size vs full length sizing, neck turning, annealing .......................


mchughcb wrote:FLS always as I use the same ammo in different rifles.

niteowl wrote:CJRBOLTGUN1 wrote:I only used barrel break-in as a starter, pretty sure there's more than just that,
what about shoulder bump , twist rate, case cleaning versus no cleaning , neck size vs full length sizing, neck turning, annealing .......................
Shoulder bump - no
Twist rate - can be critical
Case cleaning - no
Neck size - yes
Full length - no
Neck turning - no
Annealing - no
Any of the no answers require yes, chuck 'em away.
Now we should get some comments

niteowl wrote:mchughcb wrote:FLS always as I use the same ammo in different rifles.
Ah, OK on that one



niteowl wrote:CJRBOLTGUN1 wrote:I only used barrel break-in as a starter, pretty sure there's more than just that,
what about shoulder bump , twist rate, case cleaning versus no cleaning , neck size vs full length sizing, neck turning, annealing .......................
Shoulder bump - no
Twist rate - can be critical
Case cleaning - no
Neck size - yes
Full length - no
Neck turning - no
Annealing - no
Any of the no answers require yes, chuck 'em away.
Now we should get some comments

niteowl wrote:Cleaning cases ??
Should not be required, yes a quick bore brush in the neck, nothing else. Should not need annealing for more than 3 shots.
PS Collet die only, don't overwork the neck !


Duramax wrote:These two pics are of Tikka T3x's, one a 243, the other a 223. Neither have been fired as of yet but both are good candidates for a break in procedure. While both pics might look like an outback corrigated track, the burrs and high spots do disappear in fifty or so shots. Barrels as such don't need a break in process but throats in my experience most certainly do benefit from close viewing and a good polish, especially if it's a 22lr.. The bottom pic is of the 223 throat and is untouched, the 243, top pic, has been lapped with JB paste and will be fired tomorrow. The 223 will be fired tomorrow also I believe but the throat is being left as is as I feel there is nothing deep enough there for copper to stick to. There are a few tool marks and scratches to be seen but this is one of the better 223 throats I have seen from Tikka/Sako. The 243 throat was a real train wreck before the JB cut and polish.



CJRBOLTGUN1 wrote:Duramax wrote:These two pics are of Tikka T3x's, one a 243, the other a 223. Neither have been fired as of yet but both are good candidates for a break in procedure. While both pics might look like an outback corrigated track, the burrs and high spots do disappear in fifty or so shots. Barrels as such don't need a break in process but throats in my experience most certainly do benefit from close viewing and a good polish, especially if it's a 22lr.. The bottom pic is of the 223 throat and is untouched, the 243, top pic, has been lapped with JB paste and will be fired tomorrow. The 223 will be fired tomorrow also I believe but the throat is being left as is as I feel there is nothing deep enough there for copper to stick to. There are a few tool marks and scratches to be seen but this is one of the better 223 throats I have seen from Tikka/Sako. The 243 throat was a real train wreck before the JB cut and polish.
Jb bore paste is fantastic if used correctly, I use it to give my barrels a deep clean and then just maintain it with bore bright, lots of opinion out there about abrasives

Wapiti wrote:CJRBOLTGUN1 wrote:Duramax wrote:These two pics are of Tikka T3x's, one a 243, the other a 223. Neither have been fired as of yet but both are good candidates for a break in procedure. While both pics might look like an outback corrigated track, the burrs and high spots do disappear in fifty or so shots. Barrels as such don't need a break in process but throats in my experience most certainly do benefit from close viewing and a good polish, especially if it's a 22lr.. The bottom pic is of the 223 throat and is untouched, the 243, top pic, has been lapped with JB paste and will be fired tomorrow. The 223 will be fired tomorrow also I believe but the throat is being left as is as I feel there is nothing deep enough there for copper to stick to. There are a few tool marks and scratches to be seen but this is one of the better 223 throats I have seen from Tikka/Sako. The 243 throat was a real train wreck before the JB cut and polish.
Jb bore paste is fantastic if used correctly, I use it to give my barrels a deep clean and then just maintain it with bore bright, lots of opinion out there about abrasives
I bought a Howa 243 s/s sporter as a dedicated thermal rifle for wild dogs. I ditched the stiff-as-a-fly-swatter Hogue pillar bedded stock it came out with and got a full alloy bed job.
It had a VX3i 3.5-10x40 scope, and as always I spun a lapping bar in the Leupold rings.
Well, if I could break the 50mm group I would've. Tried everything. Breaking in, all loads and projectiles etc.
Then tried a Zerotech 1-8x LVPO, fell for the marketing crap all over the net and that thing is a POS with parallax at 100m that a 4lt ice cream bucket wouldn't cover. Because all you need for a clip-on thermal is 3x max. So it wasn't the scope. And the Zerotech well, chalk that up to Chinese sh*t.
In desperation, just prior to Christmas, I lapped the bore with 4 consecutive doses of "Autosol" metal polish, German-made, meant for chrome bumpers and mag wheels.
Instant improvement, groups more than halved and strangely, 90gn Speers, 87 Vmax, 87 Tipped Gameking with both 2208 and 2209 all now shoot to exactly the same POI !!!!
So for those who don't have a gunshop down at every corner that stocks JB paste, check out your local Repco or Autobarn in an average country town and get some Autosol. And I bet it's heaps cheaper.
I have no idea what JB bore paste is like or what grit it is, but Autosol is very smooth and polishes stainless steel to a mirror finish, as any metal tradie would know.


