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VinceDuarte

6.5 prc cleaning

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11 hours ago, L Cazador said:

The OP is talking about a SAMMI cartridge in a factory rifle. So obviously talking virgin brass? Do you fireform virgin brass in a SAMMI chamber before starting load development? 

No.   

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On 6/15/2021 at 10:33 AM, lancetkenyon said:

My personal method for breaking in a factory barrel:

1.  Load up 6-10 at a medium light charge weight for sighters/foulers.  Load up 15-21 rounds in 3 round groups .5gr apart.

Go to the range, sight in, and shoot the charge weight test loads for groups.

2.  Clean after that range trip.

3.  Pick the best charge weight load and Load up seating depth test loads, usually 5-6 course seating loads, 3 each at .020" deeper seating depths.

Go shoot those for groups.  

4.  Load up the best of the seating depth, maybev15ish, and go shoot at distance.

5.  Clean barrel.

6.  Load up 100 or so, and have at it.  Clean when groups open up.  Maybe 50, maybe 500.

My personal method for breaking in a custom barrel:

1.  Shoot one

2.  Repeat

Exactly the way I taught you lol

  • Haha 1

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