C.O.P. 200gr HP Discussion

Talk about your 450b reloading experience, ask questions, etc...

Moderator: MudBug

Forum rules
Please try and keep it safe!

This information is the responsibility of the community, not the forum. 450bushmaster.net is not responsible if you blow yourselves up.

C.O.P. 200gr HP Discussion

Postby Hoot » Mon Oct 20, 2014 7:41 pm

For all of you waiting for, or who got your shipment, here are a few observations in lieu of folks doing testing a submitting Range Reports.

This is a .452 bullet unlike the Barnes XPB which runs .451. Not certain yet how that will impact pressure, but it's safe to say that a recipe for the Barnes 200gr XPB would produce a faster, higher pressure load using the COP 200gr, all else being equal.

Didn't have time to photograph one next to the Barnes 200gr XPB, but as Pitted Bore already noted, they are only similar from a distance. Aside from their weight, they are completely different bullets. The COP looks like it will expand at lower velocities, having a .170-.175 diameter, parallel shaft, HP bore. The finish on the COP bullets looks like what I imagine the Barnes XPB bullets looked like before they were tumble polished. Not that it has a significant impact upon performance. The COP does not have driving bands, but it does have a crimp groove. The groove is located where if you seat the bullet to taper crimp into that groove, it would produce a round with a COL of 2.20 inches. In my barrel the Distance To Lands is 2.36 which would result in a .16 inch jump. IMHO, that's a good dimension for this caliber.

Here's a dimensional and weight stat table for a bag of 25:

Image

I included some averages from the Barnes 200gr XPB also.

I hope to cut one of each in half and photograph them so you can see how different their hollow point cavities are.

Let the conversation begin...

Hoot
In Theory, there is no difference between theory and practice. In Practice, there is.
User avatar
Hoot
 
Posts: 3578
Joined: Tue Feb 09, 2010 9:34 am
Location: Minnesota

Re: C.O.P. 200gr HP Discussion

Postby commander faschisto » Mon Oct 20, 2014 10:43 pm

Great initial info, Hootster...I'm glad someone has the patience to wring out every bit of information on a new item like this. I certainly don't, to say the least. You do good work, hombre!

What are your current plans for loading 'em up and sending 'em down the pipe?
Isa Akhbar!
NRA Life Member
Oklahoma Rifle Association member

Heavily armed; easily pissed.
commander faschisto
 
Posts: 1370
Joined: Tue May 31, 2011 6:32 pm
Location: Oklahoma City USA

Re: C.O.P. 200gr HP Discussion

Postby Texas Sheepdawg » Tue Oct 21, 2014 11:34 am

Here's a few pics of the projectile being discussed.
image.jpg
1
image.jpg (128.77 KiB) Viewed 2221 times

image.jpg
2
image.jpg (128.23 KiB) Viewed 2221 times

image.jpg
3
image.jpg (488.33 KiB) Viewed 2221 times
-Texas Sheepdawg
Join us on FaceBook https://www.facebook.com/groups/Texas.Sheepdawg.Patriots/
http://youtube.com/c/TexasSheepdawg21
NRA Life Member
User avatar
Texas Sheepdawg
 
Posts: 4041
Joined: Fri Nov 05, 2010 10:55 am
Location: North Texas

Re: C.O.P. 200gr HP Discussion

Postby Texas Sheepdawg » Tue Oct 21, 2014 11:38 am

If I'm not mistaken, Midway advertised that it was a 20 count bag. But mine have 25 per bag and apparently so does Hoots'.
I'm pleased.
-Texas Sheepdawg
Join us on FaceBook https://www.facebook.com/groups/Texas.Sheepdawg.Patriots/
http://youtube.com/c/TexasSheepdawg21
NRA Life Member
User avatar
Texas Sheepdawg
 
Posts: 4041
Joined: Fri Nov 05, 2010 10:55 am
Location: North Texas

Re: C.O.P. 200gr HP Discussion

Postby commander faschisto » Tue Oct 21, 2014 6:55 pm

They certainly look decent enough...will be very interesting to see how velocity/accuracy/expansion work out in the 450b. The Hornady 200gr .452 FTX is almost certainly a bit too "delicate" for our velocities, but I'm thinking an all-copper boolit like this one should do just fine with expansion and penetration. They're certainly worth trying, at 40-cents each, compared to the Barnes budget-busters.
Isa Akhbar!
NRA Life Member
Oklahoma Rifle Association member

Heavily armed; easily pissed.
commander faschisto
 
Posts: 1370
Joined: Tue May 31, 2011 6:32 pm
Location: Oklahoma City USA

Re: C.O.P. 200gr HP Discussion

Postby texrider » Wed Oct 22, 2014 10:03 am

Yes I noticed right off they didn't look like the pic on Midway's site(larger HP opening). I liked that there were 25 instead of 20 also. Nice info Hoot. Are the Barnes numbers similar on quality control?
User avatar
texrider
 
Posts: 84
Joined: Mon Aug 04, 2014 11:19 am
Location: Central Texas

Re: C.O.P. 200gr HP Discussion

Postby Hoot » Wed Oct 22, 2014 10:59 am

texrider wrote:Yes I noticed right off they didn't look like the pic on Midway's site(larger HP opening). I liked that there were 25 instead of 20 also. Nice info Hoot. Are the Barnes numbers similar on quality control?


Yes, from the few I checked out of a box (not 25) they held even better tolerance than the COP's. My better half will be late getting home tonight and I will be putting the free time to good use, cutting one of each in half to photograph the difference between the hollow points. If time allows, I'll load up some test rounds as well, using the standard taper crimp. With such a distinct groove, it will not be hard to get a good hold on them. The Barnes 200 XPB's that I taper crimped would not budge with 8 hard whacks using an inertial bullet puller. Another reason I use them for whitetail hunting.

Hoot
In Theory, there is no difference between theory and practice. In Practice, there is.
User avatar
Hoot
 
Posts: 3578
Joined: Tue Feb 09, 2010 9:34 am
Location: Minnesota

Re: C.O.P. 200gr HP Discussion

Postby Texas Sheepdawg » Wed Oct 22, 2014 11:20 am

Hoot, did you get my email?
-Texas Sheepdawg
Join us on FaceBook https://www.facebook.com/groups/Texas.Sheepdawg.Patriots/
http://youtube.com/c/TexasSheepdawg21
NRA Life Member
User avatar
Texas Sheepdawg
 
Posts: 4041
Joined: Fri Nov 05, 2010 10:55 am
Location: North Texas

Re: C.O.P. 200gr HP Discussion

Postby Hoot » Wed Oct 22, 2014 6:19 pm

Texas Sheepdawg wrote:Hoot, did you get my email?


Sorry Dawg, yes I did. More on that later.

OK, here are various images of the two side-by-side and in compromising positions: Image

Image

and the other way:

Image

Now revealing shots of the Barnes inside:

Image

and

Image

and

Image

Then the COP:

Image

and

Image

and

Image

Lastly, nose-to-nose

Image

Sorry if that was repetitious. Figured what one didn't reveal, the others would.

Notice that on the Barnes, the HP cavity narrows and then widens a little near the bottom. I suspect that is what contributes to the petals opening up as well as they do, as in this classic bullet porn from a water shot a few years back:

Image

Hoot
In Theory, there is no difference between theory and practice. In Practice, there is.
User avatar
Hoot
 
Posts: 3578
Joined: Tue Feb 09, 2010 9:34 am
Location: Minnesota

Re: C.O.P. 200gr HP Discussion

Postby m113103 » Thu Oct 23, 2014 4:46 am

Hoot do I see a water test in the future? :D
m113103
 
Posts: 148
Joined: Fri Sep 26, 2014 8:42 pm
Location: Thumb of Michigan

Next

Return to Reloading for the 450b

Who is online

Users browsing this forum: No registered users and 1 guest