E-Tip changes?
- Thread starter super-7
- Start date
- Oct 30, 2004
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I have not seen anything like this yet.
That said do not get too excited. Grooves make for lower ballistic coefficients because of the drag factor. So in reality I doubt that you will be able to tell the difference.
That said do not get too excited. Grooves make for lower ballistic coefficients because of the drag factor. So in reality I doubt that you will be able to tell the difference.
DrMike
Ballistician
- Nov 8, 2006
- 37,551
- 6,637
The Trophy Copper that Federal loads appears to be an E-Tip specially made for Federal. These bullets do have relief grooves cut in them. I suspect this is the source of any rumor concerning redesign of the E-Tip.
- Oct 30, 2004
- 24,458
- 3,535
Like I said Doc, I have not heard anything, however that does not mean they are not in the works.
DrMike
Ballistician
- Nov 8, 2006
- 37,551
- 6,637
I have had no problems with excessive copper deposits in the barrel or with pressure when using E-Tips. I do like them.
- Oct 30, 2004
- 24,458
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I want to try the 200 gr in my 338 ruger #1s
CMBTshooter
Handloader
- Jun 8, 2011
- 479
- 0
Those E-Tips shoot!
G
Guest
Guest
DrMike":3htd2yap said:
I've tried E-Tips in two rifles - my 270Wby and 300Wby. In both rifles, the E-Tips foul like traditional cup/core bullets, and I'm able to safely achieve velocities in line with cup/core bullets of the same weight. I see no need for relief grooves. Even Hornady has noted some issues with pressure differences between their SST/Interbonds and the GMX, despite initial marketing claims you could switch from lead to lead-free without changing your load data. Relief grooves are not the cure-all, and they bring their own hazards.
Wincheringen
Handloader
- Jan 10, 2012
- 931
- 1
The E Tip isn't pure copper like the Barnes, so that would explain the lower sensitivity and fouling I've seen while using them. They are very accurate in my .280. Hits like a freight train. 
