Cleaning barrel frequency 22/250

[Len the dog]

Upon returning home I remove the mod, give the rifle an overall oily rag and leave to dry and warm up for an hour or two. Then I will either pull a boresnake through a couple of times or a few patches soaked in either Napier cleaner or Browning Legia, whichever I currently have.
Finally I will either pass a patch soaked in gun oil or wet the tail of the snake with oil.
When I next take the rifle out of the cabinet I will pass a single dry patch to remove excess oil. First shot will be bang on.

If you are the sort to fastidiously clean your bore and then zero on a clean bore, then your first shot will naturally be on target.
If you routinely run with a dirty bore and then suddenly decide to scrub the arse off it, then of course the first shot POI will be different.

 

[Foxyboy43]

I must thankyou gentlemen for all your advice it’s invaluable,I’m currently trialing this ppu ammunition and don’t know if it will need more cleaning because of using it

Hmmm.
PPU - better known as the marmite round, some swear by them, others swear at them! Generally I found them to be pretty reasonable and minute-of-fox with one notable exception - first 5-shot “group” (who am I kidding?) of PPU shot from my Mosin Nagant at 10 yards - yep 10 yards!

RFD made a phone call to a Mosin expert who confirmed that Mosins don’t like PPU so a recommended switch to S&B then further refinement by home-loading (I only bought the sodding PPU to get the cases) resulted in a fairly dramatic improvement….

 

[Qwertyzmate]

Hmmm.
PPU - better known as the marmite round, some swear by them, others swear at them! Generally I found them to be pretty reasonable and minute-of-fox with one notable exception - first 5-shot “group” (who am I kidding?) of PPU shot from my Mosin Nagant at 10 yards - yep 10 yards!
View attachment 338665
RFD made a phone call to a Mosin expert who confirmed that Mosins don’t like PPU so a recommended switch to S&B then further refinement by home-loading (I only bought the sodding PPU to get the cases) resulted in a fairly dramatic improvement….
View attachment 338667

@Foxyboy43 looks like those PPU tumbled ? The holes are all pretty much bullet outlines

 

[Foxyboy43]

@Foxyboy43 looks like those PPU tumbled ? The holes are all pretty much bullet outlines

Exactly - 4 out of 5, the fifth missed the board completely!
I still can’t figure out how a bullet, apparently normal in all respects, could do this in 10m….

 

[Len the dog]

I still can’t figure out how a bullet, apparently normal in all respects, could do this in 10m….

The turning moment on a long for twist bullet is caused by the longitudinal separation between its centre of gravity and its centre of pressure. Gravity is pulling it down whilst air pressure (drag) is pushing it back, this causes the nose to tip up.
The drag is at its greatest the moment the bullet leaves the barrel and reduces as its velocity drops, whereas the rotational speed remains pretty much constant for the entire flight, which of course gives it its gyroscopic stability.
A shorter bullet has a correspondingly shorter separation between these two forces and therefore doesn’t need as high a rotational speed to remain stable.

 

[Pellet Pinger]

Hmmm.
PPU - better known as the marmite round, some swear by them, others swear at them! Generally I found them to be pretty reasonable and minute-of-fox with one notable exception - first 5-shot “group” (who am I kidding?) of PPU shot from my Mosin Nagant at 10 yards - yep 10 yards!
View attachment 338665
RFD made a phone call to a Mosin expert who confirmed that Mosins don’t like PPU so a recommended switch to S&B then further refinement by home-loading (I only bought the sodding PPU to get the cases) resulted in a fairly dramatic improvement….
View attachment 338667

Did you try the PPU at 200yds?

 

[DavyG]

Exactly - 4 out of 5, the fifth missed the board completely!
I still can’t figure out how a bullet, apparently normal in all respects, could do this in 10m….

Have you been rattling .222 thru’ it again…

 

[Foxyboy43]

The turning moment on a long for twist bullet is caused by the longitudinal separation between its centre of gravity and its centre of pressure. Gravity is pulling it down whilst air pressure (drag) is pushing it back, this causes the nose to tip up.
The drag is at its greatest the moment the bullet leaves the barrel and reduces as its velocity drops, whereas the rotational speed remains pretty much constant for the entire flight, which of course gives it its gyroscopic stability.
A shorter bullet has a correspondingly shorter separation between these two forces and therefore doesn’t need as high a rotational speed to remain stable.

Well put L and pretty much how I understood it - from memory they were 180gns and so pretty long so in that very short distance they must have immediately turned right/left/up/down as they exited! Saying that the rifle was counterbored for about an inch - I wonder if that had any impact - conversely it was only on PPU so likely not!

 

[Foxyboy43]

Have you been rattling .222 thru’ it again…

Steady there young man - I know where you live!
You may recall that the 8mm had no such issues with homeloads…..

 

[Foxyboy43]

Did you try the PPU at 200yds?

Nope - call me old-fashioned but such was their tumbling I feared they would come boomeranging straight back at me!

 

[NullMac]

You will get a thousand different answers.

It is up to you to do whatever you are comfortable with really, it is your barrel. If it will be out in the next couple of days then i just run a dry patch though it (maybe), if it is going to be in the safe for a while I clean it properly and oil the bore. You need to know where the first round goes out a clean barrel though.

 

[jakey3]

Clean mine with boretech eliminator after every outing whether 1 round or 10 gets cleaned.

 

[Smellydog]

Frequency?
I just put radio 2 on when I'm fiddling

 

[Kiwiguy]

Every time any of our rifles are taken out and used they are cleaned with KG 1 followed by KG 12 when we arrive home. If they haven't been fired they receive a patch with Eezox down the bore before being locked away in the safe.

 

[Polar Lynx]

When (very) cold outside then it takes some ample time for the barrel to reach indoor temp upon return. Seen people clean or dry out barrel to early when at home. Condensation builds up until barrel temp is same as indoor temp and this may take hours.