Just checked my chamber with the Hornady Lock-N-Load OAL and the 6.5 Grendel modified round with a Barnes TSX 120 grain - 2.360" average for five measurements. Using the load table that came with my Lee dies, the recommended OAL for the Barnes 120 TSX was 2.230".
My math might be a little rusty but that comes out to a jump of 0.130". Bullet seats with the first ring showing at 2.235" OAL and is not compressing a 30.9 grain load of BLC2. Anyone else thinks this is a little excessive jump for an AR-15 chamber? I double checked the headspace again -still within spec, Go-gauge closes and locks, No-go gauge doesn't close or locks. Test rounds will chamber and lock by pushing the bolt close.
The loads I'm going to test are AA cases, FL sized with a Redding die, primed with CCI 450 small rifle primers, the Barnes 120 grain TSX and BLC2 loads of 29.7, 30.4 and 30.9 using the recommended loads from the Lee load table of 29.7 grains to 30.8 grains. Just checked the old loads posted on this forum but they don't list the OAL but my loads are on the lighter end (max at 31.5 gr BLC2).
In another thread I had good results with the Nosler Partition and Sierra Pro Hunters seating to 2.250" but even that is a jump of 0.110". At this point, I'm inclined to go with what works unless some body has another thing I need to check?
Gunfighter
My math might be a little rusty but that comes out to a jump of 0.130". Bullet seats with the first ring showing at 2.235" OAL and is not compressing a 30.9 grain load of BLC2. Anyone else thinks this is a little excessive jump for an AR-15 chamber? I double checked the headspace again -still within spec, Go-gauge closes and locks, No-go gauge doesn't close or locks. Test rounds will chamber and lock by pushing the bolt close.
The loads I'm going to test are AA cases, FL sized with a Redding die, primed with CCI 450 small rifle primers, the Barnes 120 grain TSX and BLC2 loads of 29.7, 30.4 and 30.9 using the recommended loads from the Lee load table of 29.7 grains to 30.8 grains. Just checked the old loads posted on this forum but they don't list the OAL but my loads are on the lighter end (max at 31.5 gr BLC2).
In another thread I had good results with the Nosler Partition and Sierra Pro Hunters seating to 2.250" but even that is a jump of 0.110". At this point, I'm inclined to go with what works unless some body has another thing I need to check?
Gunfighter
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