Bulletproof

Worn throats are not a major problem with DR's from what I have found.
I am more concerned if the barrels are worn in the last 1/2 or 1/4 of the barrel.

Re bullet weight, being a 303, what is it regulated for ?
174 gn or 215 gn.

If not specified you can sometimes tell by the age of the gun.

Try 174gn Bullets as 4" isn't too bad for 1st go.

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