hand lapping

[pdoughertyMU]

I have a tikka t3 7mm l/s , and have put about 200 shots through it if not more. (maybe even 300). Anyways, would i see any improvement if i were to get the barrel hand lapped now? Or is that basically a strictly brand new barrel type of deal?

My local gunsmith does it for only 35 bucks, so i figure if it will help group by even .001 inches, it would probably be worth it.

[ranger140892]

It can still help. But clean that bore really well first. It needs to be totally spotless, and de-coppered.

[martinfaw]

Pardon my ignorance, but what is hand lapping.

Thanks Martinfaw

[Briman]

If it ain't broken, don't try to fix it.

My local gunsmith does it for only 35 bucks

The question is, does he do it correctly for $35?

[pdoughertyMU]

how much does it cost on average?

You can easily ruin a barrel hand lapping. I think its wise to have a bore scope to see your progress. I tried hand lapping a throat of a gun that had heat cracks, and over did it. I didn't know what I was doing at the time. I wasn't too upset, because the heat cracks in the throat area, but had to have the gun rereamed, and everything reset and lost over 1.5" of barrel. I ended up selling the gun. Took a big loss.