You might still have a very slight too much remaining case mouth flare or the chamber is slightly dirty.
Plunk Testing:
The solution to chambering problems is to determine the cause:
Take the barrel out of the gun. Drop rounds in until you find one
that won't chamber. Take that round and "paint" the bullet and
case black with Magic Marker or other marker. Drop round in
barrel (or gage) and rotate it back-and-forth a few times.
Remove and inspect the round:
1) Scratches in the ink on bullet--COL is too long
2) Scratches in the ink on edge of the case mouth--insufficient
crimp
3) Scratches in the ink just below the case mouth--too much
crimp, you're crushing the case
4) Scratches in the ink on case at base of bullet--bullet seated
crooked due to insufficient case expansion (not case mouth flare)
or improper seating stem fit
5) Scratches in the ink on case just above extractor groove--case has a bulge that the sizing die can't reach. Bulge bust or throw case away.
You might still have a very slight too much remaining case mouth flare or the chamber is slightly dirty.
Plunk Testing:
The solution to chambering problems is to determine the cause:
Take the barrel out of the gun. Drop rounds in until you find one
that won't chamber. Take that round and "paint" the bullet and
case black with Magic Marker or other marker. Drop round in
barrel (or gage) and rotate it back-and-forth a few times.
Remove and inspect the round:
1) Scratches in the ink on bullet--COL is too long
2) Scratches in the ink on edge of the case mouth--insufficient
crimp
3) Scratches in the ink just below the case mouth--too much
crimp, you're crushing the case
4) Scratches in the ink on case at base of bullet--bullet seated
crooked due to insufficient case expansion (not case mouth flare)
or improper seating stem fit
5) Scratches in the ink on case just above extractor groove--case has a bulge that the sizing die can't reach. Bulge bust or throw case away.
Just something to check... make sure your barrel is clean before the plunk test. Powder residue could stop the round from falling out on its own.
You might still have a very slight too much remaining case mouth flare or the chamber is slightly dirty.
Plunk Testing:
The solution to chambering problems is to determine the cause:
Take the barrel out of the gun. Drop rounds in until you find one
that won't chamber. Take that round and "paint" the bullet and
case black with Magic Marker or other marker. Drop round in
barrel (or gage) and rotate it back-and-forth a few times.
Remove and inspect the round:
1) Scratches in the ink on bullet--COL is too long
2) Scratches in the ink on edge of the case mouth--insufficient
crimp
3) Scratches in the ink just below the case mouth--too much
crimp, you're crushing the case
4) Scratches in the ink on case at base of bullet--bullet seated
crooked due to insufficient case expansion (not case mouth flare)
or improper seating stem fit
5) Scratches in the ink on case just above extractor groove--case has a bulge that the sizing die can't reach. Bulge bust or throw case away.