Pitted barrel bullets question

TR Treeman 3 months ago

I have a badly pitted 7x57 rifle that shoots 2 touching holes and then one flyer. Repeat repeat.
I am wanting to try a different style bullet to perhaps beat the pitting.
For a pitted barrel, should one try a harder mono bullet or a softer deforming cup and core bullet ?
Should one aim for shortest bullet or longest style bullet of same weight.
 I am thinking hardest bullet in shortest style with longest bearing surface to beat the rough bore, though some may suggest shortest bearing surface I believe the longer bullet support would be better.

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DS Ds J

I have pondered this question as well. 

Pits lessen the structural integrity of the barrel, hence I assume that a kaboom situation is more likely. Once cut in, a mono bullet is said to have less pressure than a C&C bullet but how does it influence the erosion at the pits? 

In the US, there is a company which makes extra soft bullets especially for pitted barrels. The theory is apparently that a softer bullets deforms and is less likely to get stuck. 

TR Treeman OP

[quote data-userid="189" data-postid="7981"]

I have pondered this question as well. 

Pits lessen the structural integrity of the barrel, hence I assume that a kaboom situation is more likely. Once cut in, a mono bullet is said to have less pressure than a C&C bullet but how does it influence the erosion at the pits? 

In the US, there is a company which makes extra soft bullets especially for pitted barrels. The theory is apparently that a softer bullets deforms and is less likely to get stuck. 

[/quote]

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I cannot agree with this for pitted barrels, - worn yes, but not pitted. Soft bullets will smear and tear and deform 

JA janfred

I fed the wife's. 303 with normal Sierra bullets and the accuracy was just fine.
Don't you think that perhaps the the bullets may be to blame? Pitting is usually not the accuracy killer that most think it is.

TR Treeman OP

[quote data-userid="65" data-postid="7982"]

I fed the wife's. 303 with normal Sierra bullets and the accuracy was just fine.
Don't you think that perhaps the the bullets may be to blame? Pitting is usually not the accuracy killer that most think it is.

[/quote]
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Agreed, more of a fouling issue.

JA janfred

What I have seen with her .303 is that the sharp edges of the pitting smooth down quite quickly. Fouling did not increase as quickly as expected.

To make this process faster, you can put some Iiosso on a tight-fitting jag and run it up and down the barrel a few (50) times. I used Brasso that time.

NE Newton

[quote data-userid="65" data-postid="7985"]

What I have seen with her .303 is that the sharp edges of the pitting smooth down quite quickly. Fouling did not increase as quickly as expected.

To make this process faster, you can put some Iiosso on a tight-fitting jag and run it up and down the barrel a few (50) times. I used Brasso that time.

[/quote]

J B Bore Paste

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