2.775" CBTO with a 215 is what am using
Ladder Test Results - 30 Nosler - 215 Hybrids
- Thread starter Longtine88
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fnlights
Well-Known Member
That seems quite a bit longer than mine.
What is your COAL?
Which and how much powder are you using?
What are you using to get your OAL?
What are you using for a comparator? If it's an $8.00 Hornady that costs $.08 to build in China you could have that much difference from someone else's to yours. CBTO with these is a terrible way to share information.
Which and how much powder are you using?
What are you using to get your OAL?
What are you using for a comparator? If it's an $8.00 Hornady that costs $.08 to build in China you could have that much difference from someone else's to yours. CBTO with these is a terrible way to share information.
fnlights
Well-Known Member
COAL is around 3.462 with Berger 215's. Note this is a measurement on a round that is .010 CBTO off lands. So maybe add roughly another .010 to get COAL to lands of around 3.472?
H1000 - started at 78 and worked up to 83 in .5gr increments- just one of each for a pressure test
Hornady comparator and modified case.
fnlights
Well-Known Member
Going to go try now - I bet the bullet won't chamber though
It looks like you have a short throat in your chamber. This is why I recommend getting your own reamer When building a custom rifle.
Is this new brass?
As far as the bullet is seating into the case, not only could you be compressing powder but you run the risk of donut interference. Are you using the resizing button on your die to set neck interference or are using a bushing and/or mandrel?
When I was looking at building a 30 Nosler I want to say I was looking to seat the bullets somewhere between 3.650 - 3.700 COAL to get the bearing surface above the neck/shoulder junction.
Is this new brass?
As far as the bullet is seating into the case, not only could you be compressing powder but you run the risk of donut interference. Are you using the resizing button on your die to set neck interference or are using a bushing and/or mandrel?
When I was looking at building a 30 Nosler I want to say I was looking to seat the bullets somewhere between 3.650 - 3.700 COAL to get the bearing surface above the neck/shoulder junction.
fnlights
Well-Known Member
Yes - see below. This will chamber, but it is tough and you can see the marks on the bullet - so this is definitely jammed
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fnlights
Well-Known Member
Definitely agree. Like real short. Just wish APR would have something better for a 30N and Berger 215.
Brand new ADG. Powders not compressed- I can shake it and hear it all moving around.
Neck tension is set with redding bushing die @ .002
I'd send it back to Robert and tell him what's going on
I would be concerned if you can hear powder shaking around, especially with the bullet that deep in the case. I'll be interested to see how your ES/SD looks when you do shoot it.
Regarding neck tension, did you determine bushing size from a case with the bullet seated or some other method?
Left Hand Dave
Well-Known Member
Keep us all informed so we can learn along with you on the cause.
