| Ripp |
| (.577 member) |
| 26/08/17 03:48 AM |
Re: Behind-the-bullet- 6.5-284-Norma
|
Quote:Quote:Quote:
270 Vs 6.5. In the target world, the 6.5 would be a clear winner on use alone. Then add in the reasons for this.
In the hunting world it would be the 270 on physics alone. The 270 will penetrate as much as needed and puts a bigger hole, not by much, but a bigger hole in the animal.
The above is all things being as equal as they can.
Same can be said about 280 (7mm) Vs 270 in the hunting world.
I don't agree with this..all things being equal, which they are not..the 6.5 has a better BC..so it will retain its speed for longer shots better than the .270..and the sd of the 6.5 when compared to the 270 of equal gr bullet is also better, therefore it will penetrate better..
Agree with you, in the real world and where most shots are taken..300 yards and less, none of this makes much if any difference..
I am merely pointing out the fact, as claimed in an earlier post, that the 270 really does not do anything better than a 6.5, and when given the distance the 6.5 really surpasses the 270 ...
Hornady website
6.5MM .264"
143 gr
ELD-X®
.625 (G1)
.315 (G7)
270 CAL. .277"
145 gr
ELD-X®
.536 (G1)
.270 (G7)
This doesnt includ the ELD-match bullet..which is as follows:
6.5MM .264"
147 gr
ELD® Match
.697 (G1)
.351 (G7)
270 CAL. .277"
N/A..cause the 270 sucks ..
Seriously no match bullets made by Hornady in their latest long range bullet.
Swift Scirocco Bullets--I know they are expensive..BUT....no comparison..
6.5MM .264 130 BTS .266 .571
270 .277 130 BTS .242 .450
Ripp, the SD etc is covered in my post "In the target world, the 6.5 would be a clear winner on use alone. Then add in the reasons for this." That means SD etc.
Penetration at normal hunting ranges and proper bullet construction the 270 has more than enough. It still puts a bigger hole in the animal and this is what kills short of a head/spine shot. The 7mm is that much better again.
If I was to hunt scrub bulls or donkeys and I had a choice of only 6.5, 270 7mm, (note I did say Only)I would chose 7mm, 270, 6.5 in that order. Smaller less tenacious or dangerous I would be happy to any of them. If I want to nail targets at long range then the 6.5 wins.
Agree--IF I was hunting the game you stated..and those were my choices..yes, I would use a heavy for caliber bullet in 7mm..however if I had a choice I would choose a 30 cal or 338..I have done exactly that in my 300RUM shooting 200 gr A-Frames vs the 180's..impressive on elk..
As to BC and SD..my thoughts and research are the higher ballistic coefficient allows the 6.5 to achieve and maintain its velocity and not be blown off as easily by wind..the SD, which is also better in the 6.5 vs the 270...higher sc equals deeper penetration..I do fully agree that the 270 is more than enough..but the 6.5 does have more using similar weight bullets..
Thx
Ripp