223 Bullets

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cervri

New member
Has anyone tried these? the good, the bad, the ugly.....CopperHead 223 Remington 55gr BT, SOLID COPPER 2nds bullets . Mainly plinking....
 
Copperhead -a solid or a HP ? What do they recommend as twist rate ?
I hunt with Barnes all copper HP which is a premium bullet in rifle or pistol, accurate effective. ..I haven't specifically tried the copperhead..
 
Looked at the site this morning and they were in stock. Went to order some just now and out of stock. They do have a sign up for a waiting list though.
 
Did a quick google search and found too much info about questionable quality and accuracy. I normally associate "blems" as a cosmetic flaw but from searching reviews found too many posts about variance in diameter and deformed tails. Went with RMR's 55gn instead. Pretty much the same price and have used them in the past so I know what I'm getting.
 
How is the weight, comparator and length variances of the rmr bullets?
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Same for the copperheads?
 
I have been trying to work up a load with these Copperheads and have had no luck at all, no consistency at all. I am using H335 powder and CCI small rifle primers.
 
When buying bullets labeled as "Seconds" or "Factory Seconds" you really have to wonder how they earned the name? Figure things this way, we have evolved from a smooth bore musket to rifles with rifling to put a spin on a bullet to improve accuracy. Things work a little like this:

MV x (12/twist rate in inches) x 60 = Bullet RPM

Quick Version: MV X 720/Twist Rate = RPM

So just winging it a 55 grain .223 bullet at 3,000 FPS will have a spin rate of 3000 X 720 = 2160000 so we get 2160000 / let's say 9 = 240,000 RPM.

Accuracy and RPM
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Additionally, bullet RPM is very important for accuracy. Nearly all modern rifles use spin-stablized bullets. The barrel’s rifling imparts spin to the bullet as it passes through the bore. This rotation stablizes the bullet in flight. Different bullets need different spin rates to perform optimally. Generally speaking, among bullets of the same caliber, longer bullets need more RPM to stabilize than do shorter bullets–often a lot more RPM.
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Think about an unbalanced or lopsided bullet at those spin rates? Think about why bullets are labeled as seconds. Think about if that is what you want to load. Don't misunderstand, sometimes slightly blemished bullets can be a good deal but what good are bullets, even at a cheap price that can't repeat a good trajectory?

Just MY Take
Ron
 
I have been trying to work up a load with these Copperheads and have had no luck at all, no consistency at all. I am using H335 powder and CCI small rifle primers.
Click to expand...
What was your load and how bad was it?

Here is some load info when the copperhead came out.

https://www.reddit.com/r/reloading/comments/2rmvib/starting_load_suggestions_for_copperhead_55_gr_bt/

Said "with a steady 15 mph cross wind and gust up to 30 or so......I had 3 powders loaded, one 3031, benchmark, and accurate 2015. Accurate 2015 loads ranged from 21-22.5 grains, with best group being 1.6" with 22g. 3031 loads ranged from 20.4-21.9g, with the best group at .93" and 21.4 grains. Benchmark had a best group at 1.4 inches with 23grains. " Not bad at all to me.

And this guy was getting "decent" group at his first reloading using this bullet

http://www.thehighroad.org/showthread.php?t=773544
 
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First off: Brian...I only measured a half dozen or so... .796-.814

I used Barnes Bullet Data as I had read that they were very close to the same as the copperheads...
Load Data for Barnes and H335 were 20.9 gr to 23.2 gr..
I loaded up 5 each
21.0 gr
22.0 gr
22.5 gr
23.0 gr
None of the groups were under 5 inches. No ill effects to brass..
I have since loaded a batch with 24 gr and will try them when i get a chance. I may and probably should also load some 23.5 gr...

My barrel twist is 1:8 and is 16"
 
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