Thread: Copper Bullet Performance On Deer

At 500m with a 10m/h cross wind the drift would be around 6. 3moa.

On the morning I took the shot at 500m the wind was very lightly blowing directly towards me.

Originally Posted by TeRei

None. They get there super fast. But it is that noise when you tag a beast. Maybe it is a match made in heaven. Used to load 55gr TTSX for a mate but he hated them.

On my calculations (taking your MV number as truth), you are getting 1 inch of drift per MPH of wind at 300m.

That's considerable

One thing nobody has mentioned yet if accuracy is not good it pays to have a full clean back to bare steel.
Get all that cup and core gilding metal fouling out..completely clean before testing coppers for accuracy.

Originally Posted by veitnamcam

One thing nobody has mentioned yet if accuracy is not good it pays to have a full clean back to bare steel.
Get all that cup and core gilding metal fouling out..completely clean before testing coppers for accuracy.

And then clean all the coppers copper out before going back to cup n cores and J4 jackets

Originally Posted by 7mmsaum

And then clean all the coppers copper out before going back to cup n cores and J4 jackets

Ron Spomer reckons done in this sequence that the monometal copper fouling doesn't seem to affect accuracy very much of cup 'n core bullets. But he found accuracy of monometals could improve considerably if the barrel is first cleaned of copper fouling of cup 'n cores.

I haven't seen evidence of that. He may just be measuring precision poorly and drawing unsupported conclusions.

E.g. 10rd of 55gr ETIP from .223 on top of a whole lot of fouling from ELDM

Originally Posted by gimp

I haven't seen evidence of that. He may just be measuring precision poorly and drawing unsupported conclusions.

E.g. 10rd of 55gr ETIP from .223 on top of a whole lot of fouling from ELDM

Attachment 271229

Then you're good.
But if it's not then your barrel might need a good clean out before it will shoot coppers.
Are etip pure copper or a gilding metal alloy?
Pretty sure Hornadys mono's are a similar alloy to their jackets so they play nice together.

Here's Barnes TSX, same thing. Not saying it isn't possible but I haven't seen convincing evidence for it - if someone pulls some up I'm all eyes

@gimp sorry could you please explain for a newbie a little more?

Is it possible that shooting the odd Barnes TTSX through my 308 might affect the groups of my lead ammo?

Using the copper for close-range stuff and the lead for longer shots from the same rifle seems like a good combo for me right now.

Some people claim that switching from lead-core to pure copper bullets without extensive cleaning may cause poor precision with the copper bullets. I have seen no evidence of this effect. It may be true, I look forward to seeing someone test it or post any evidence they already have

Lost on this. You clean your barrel after every hunt whether you fire a shot or not. Either you have a clean barrel or not. If you dont have a proper cleaning regimen then that is a different story.

Originally Posted by TeRei

Lost on this. You clean your barrel after every hunt whether you fire a shot or not. Either you have a clean barrel or not. If you dont have a proper cleaning regimen then that is a different story.

Sounds excessive

"Large exit, impressive expansion and entire cavity was soup"

Exact description to my mono experience on a red. 170+ yards. Double lungs with 150 GR Winchester copper impact, Impressive exit. 16" 308 Tikka Bushunter 1. Muzzle Velocity 2580.

Currently Howa Carbon Elevate with ttsx 130 and Fusion 150.

@gimp OK cool, I just run a few patches down mine after use, and it seems to shoot great every time.

In saying that, I'm never shooting more than 350m. If I start to see accuracy dropping, then I'll give it a thorough cleaning. But for now, it seems fine and accurate enough on deer.

Lots of you have been mentioning a lighter 308 Barnes option, 110 or 130gr. I'll keep using these 150's for close-range stuff for now. Later this year, I'll look at getting some Maker Tipped 130gr rounds made up. I'll report back on them then.

For now I'll see if I can get a few more at close range with the Barnes!