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What is the Difference?
- Thread starter Hirschi1
- Start date
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I suspect other than beng a descriptive variation, there is probably no difference.
Here us a useful summary of the 6.5x284 Norma, it's official name:
6.5-284 Cartridge Guide
Here us a useful summary of the 6.5x284 Norma, it's official name:
6.5-284 Cartridge Guide
Varmint Hunter
Well-Known Member
Lapua brass is designated as 6.5x284 Norma, not 6.5x284 Lapua.
The Winchester designation may have originated from the 284 Win brass which was used to develop the round.
I have read that the 6.5x284 Norma chamber has a longer throat to accommodate heavier/longer bullets.
The Winchester designation may have originated from the 284 Win brass which was used to develop the round.
I have read that the 6.5x284 Norma chamber has a longer throat to accommodate heavier/longer bullets.
Buttermilk
Well-Known Member
The 6.5x284 Norma has a long throat. (~3.2" oal)
The 6.5x284 Win has a short throat. (~2.8" oal)
The 6.5x284 Win has a short throat. (~2.8" oal)
MagnumManiac
Well-Known Member
To clarify, the 6.5x284 Norma is the cartridge name, not the brand of brass.
Winchester make 284 brass, easily reformed, both Norma and Lapua make 6.5x284 Norma brass, it is identical except for who makes it.
What Buttermilk said is correct.
Cheers.
lightbulb
Yes, you can use the necked down Winchester brass. What Buttermilk refers to about the throat difference is reflected in the chambering of the rifle that allows the bullet to be seated further out before it contacts the lands. The standard COAL of a 284 Winchester round is 2.8". This is basically a cartridge that was originally planned to be used in a short action. Unfortunately, the heavier/longer 140gr VLD's extend too far into the case, taking up powder space in short actions. The 6'5x284 Norma chambering takes full advantage of the case capacity and is best served with a long action which allows magazine feeding of the longer COAL.
