NRAA HBC 155grn ammo
Posted: Wed Sep 16, 2009 5:04 pm
G'day all,
Can anyone tell me the load for the NRAA 155grn HBC ammo??
Thanks.
Can anyone tell me the load for the NRAA 155grn HBC ammo??
Thanks.
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Posted: Fri Sep 18, 2009 10:29 pm
The Palma team are using 46gn. 2208 15 thou. jump. The ADI reloading book gives 47gn. 2208 as max load.
HBC AMMO
Posted: Mon Sep 21, 2009 4:51 pm
Hi .
Does any one know the B.C. for the 155gn HBC projectile?
Cheers
Paul
Does any one know the B.C. for the 155gn HBC projectile?
Cheers
Paul
Posted: Mon Sep 21, 2009 5:05 pm
Jeez, Paul, don't you read the ATR mag? It's in the current issue.
John
John
Posted: Mon Sep 21, 2009 5:28 pm
Woops, will do.
Thanks John
Paul
Thanks John
Paul
Posted: Tue Sep 22, 2009 10:41 am
I dont get ATR, can someone post the BC and such??
Posted: Tue Sep 22, 2009 10:59 am
Likewise,
I think Paul was posting due to the same question I asked him, so posting the info rather than unhelpful comments might help some newbies out & that would be appreciated.
10FPAT
I think Paul was posting due to the same question I asked him, so posting the info rather than unhelpful comments might help some newbies out & that would be appreciated.
10FPAT
BC's
Posted: Tue Sep 22, 2009 12:04 pm
Well I found the info and here it is.
155gn, HBC, B.C. 0.462
Cheers
Paul
155gn, HBC, B.C. 0.462
Cheers
Paul
Posted: Tue Sep 22, 2009 12:23 pm
Cheers for that. What about velocity, etc??
Posted: Tue Sep 22, 2009 1:21 pm
Sorry Sean
I shoot F Class Open.
You would have to load up several batches of ammo, with different powder charges and try the loads over a chronograph.
Then with the velocity obtained you could enter the info into a balistic programe and get your bullet drops for each range.
I hope this helps
Paul
I shoot F Class Open.
You would have to load up several batches of ammo, with different powder charges and try the loads over a chronograph.
Then with the velocity obtained you could enter the info into a balistic programe and get your bullet drops for each range.
I hope this helps
Paul
Posted: Tue Sep 22, 2009 2:03 pm
U could pretty much bet that it would be around 2900-50fps out of a 30" tube
Posted: Tue Sep 22, 2009 6:33 pm
Hello 
,just for every ones interest 
, i am using 46.8grains of ar 2208, in a rem case and cci large primer,behind a 155 hpbt nosler competion or a sierra 155 hpbt at 73.0 mm o.a.l. in a 1 in 10 twist 26 inch s/steel barrel. with good results at 300 to 1000 yards.my primers show no pressure signs. from barry t 
,just for every ones interest , i am using 46.8grains of ar 2208, in a rem case and cci large primer,behind a 155 hpbt nosler competion or a sierra 155 hpbt at 73.0 mm o.a.l. in a 1 in 10 twist 26 inch s/steel barrel. with good results at 300 to 1000 yards.my primers show no pressure signs. from barry t Posted: Tue Sep 22, 2009 7:10 pm
Paul, thanks for that mate. I dont reload yet, Im just using the factory loaded ammo sold by WARA. Thats the load I was chasing. Im going to be shooting F-Standard with my Remington 700 built rifle. Scope arrived late and unfortunately, I wont be going to the WARA Queens with it as I dont have the money. Just wanted to know some info about the ammo.
Thanks for your helps guys.
Thanks for your helps guys.
Posted: Tue Sep 22, 2009 9:39 pm
Shaun,
There's only one way to get a handle on what the velocity of the NRAA loads are & that's to shoot them your barrel over a reliable chronograph - because there are so many variables that will determine how it performs for you compared to the next guy. The next best thing is to shoot it progressively from 300 back to as far as you'tr planning to shoot & assiduously record the elevations needed each range. If you then use ballistic maths & that ,462 BC figure, you can then probably interpolate a velocity.
However, for most shooters accepting or using Bryan Litz's calculated BC figure (the one in the ATR) would be useful only if you did have an idea of your muzzle velocity & did use acceptable ballistic tables to calculate your elevations - and that can be tricky. As an example, I use a ballistic table derived from Art Pejsa's approach to ballistics & it gives me elevations on my home range within ΒΌ MOA of spot on using a ballistic coefficient better than 8% higher than the one that Bryan has calculated, hence my qualification.
John
There's only one way to get a handle on what the velocity of the NRAA loads are & that's to shoot them your barrel over a reliable chronograph - because there are so many variables that will determine how it performs for you compared to the next guy. The next best thing is to shoot it progressively from 300 back to as far as you'tr planning to shoot & assiduously record the elevations needed each range. If you then use ballistic maths & that ,462 BC figure, you can then probably interpolate a velocity.
However, for most shooters accepting or using Bryan Litz's calculated BC figure (the one in the ATR) would be useful only if you did have an idea of your muzzle velocity & did use acceptable ballistic tables to calculate your elevations - and that can be tricky. As an example, I use a ballistic table derived from Art Pejsa's approach to ballistics & it gives me elevations on my home range within ΒΌ MOA of spot on using a ballistic coefficient better than 8% higher than the one that Bryan has calculated, hence my qualification.
John
Posted: Tue Sep 22, 2009 10:09 pm
Thats for that mate. I'll keep it in mind.