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CALIBER CHOICES

 
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  #1  
Old 06-06-2002, 10:04 PM
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CALIBER CHOICES

What caliber did you choose and why? I know that most everyone talks about the 7mm,300's and 338's but besides flat shooting was there anyother reason?

something to think about
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Old 06-06-2002, 11:09 PM
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Re: CALIBER CHOICES

Flat shooting is the longrange hunters bullet of choice.

The higher the BC the flatter shooting the bullet will perform.
The more velocity that's retained, the more energy that is retained.

It just so happens the 7mms heavier bullets like 168 and 180 gr , 30 cals heavy bullets like the 220 and 240 gr and the 338 300 gr and the 408 419 gr are the highest BC bullets that are available for the longrangehunter. You could also add the 50 cal as a high BC bullet and a longrange hunting bullet also.

That's why most LR hunters choose them. No other caliber or bullet will do what these will do at extreme range.

My calibers of choice are----6.5/284, 6.5 Gibbs, 6.5/300 Weatherby, 7/300 Weatherby, 308 DC Super ImP, 300 Tomahawk, 338/416 RIgby IMP

DC

[ 06-13-2002: Message edited by: Darryl Cassel ]
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Old 06-07-2002, 06:29 AM
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Re: CALIBER CHOICES

My first cal. choice was the .308 mostly because this was a time proven longer range cal. Albeit not the 1500 yards and beyond cal. but nevertheless the .308 is pretty good out to 1K. I figured it was a good place to start. The 175 SMK have a good BC and the brass and bullets are everywhere for the .308. Fairly reasonable to reload and get lotsa practice in. In a pinch you can get good factory match ammo as well.
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Old 06-08-2002, 07:33 PM
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Re: CALIBER CHOICES

'cause I always wanted one as a kid! Maybe when ya get older (i mean me) a guy figures out the mystque isn't all there,(talkin about certain cal.'s) or maybe theres somthin new out there....ah hell, who needs another excuse to buy another rifle when anys good enough!
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Old 06-09-2002, 12:53 AM
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Re: CALIBER CHOICES

Ok I a little bit stupid but I want to learn! I known that the higher B.C. the less deflection a bullet has but, does it just has to be a heavier weight bullet? These so called super bullets of brand x & y claim to be better because of the higher speeds . What effect dose this have on game? Will a moose know the difference between a 30. cal 168gr going say 3000f.p.s than the 30. cal 175 or 200gr bullet say going 2400f.p.s.?
Dead is dead right? I'm willing to be slapped a little for answers.
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Old 06-09-2002, 02:37 AM
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Re: CALIBER CHOICES

Texas,
the moose will probably not notice much at 200 or 300yds but out beyond that the BC of each will be more important to penitration ability and trajectory. The longer the bullet is, the heavier it generally is and the higher the BC is too. With that said, a given gun will generally shoot a heavier bullet just a little slower than the next lighter weight of bullet. The advantage it has in speed are generally MORE than lost in the area of BC. In other words, what the heavier bullet gives up in speed, it usually makes up for in BC given enough distance to do so, speaking in terms of energy and trajectory.

Some bullets may need a little more speed to help them open up at say 300 to 400yds, I'd say the Failsafe and Barnes X might could benifit, but at very long range these bullets are largely not opening up at all and acting as solids only benifit is having a high BC. A sierra will probably do a better job and open up a little way out there. Ultra high impact velocities are just not happening way out there. The most fragile bullets made may be just the ticket at the lowest end of the spectrum in impact velocity. By the way do they make a Ballistic tip yet for the 416Wby I could use at 1500yd for moose? Wouldn't even need the contruction of a Scirocco at that range. 416 400gr Matchking? ya baby, bring it on.
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Old 06-09-2002, 09:54 AM
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Re: CALIBER CHOICES

<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>I known that the higher B.C. the less deflection a bullet has but, does it just has to be a heavier weight bullet?<HR></BLOCKQUOTE>

As I understand it, the B.C. is not directly a function of the _weight_ of the bullet. It corresponds more closely w/ the length of the bullet for a given caliber. Of course, reality seems to dictate that using conventional materials such as copper and lead, causes a longer bullet to be heavier as well, thereby off setting some of the benefits of the increased B.C. by reducing muzzle velocity. Its an interesting balancing act, but a sufficiently high B.C. seems to win out over high velocity for long range performance, at least as far as getting the bullet *to* the target. As far as perfomance once the bullet reaches the target, I'd personally prefer as much velocity as possible to make sure the bullet has enough oomph to penetrate/expand sufficiently.

<BLOCKQUOTE><font size="1" face="Verdana, Helvetica, sans-serif">quote:</font><HR>What effect dose this have on game? Will a moose know the difference between a 30. cal 168gr going say 3000f.p.s than the 30. cal 175 or 200gr bullet say going 2400f.p.s.? <HR></BLOCKQUOTE>

Dunno for sure, but me thinks that as long as you put the bullet in the right spot, the difference would be minimal. From a .308 Win, my 700VS will drive a 175gr SMK at about 2750fps, and a 155gr SMK at about 2900-2950fps. I'd guesstimate the 168gr to split the difference. With that close of a gap in velocity, the 175gr walks all over the 168gr as far as retained velocity and energy beyond 300yds. Interestingly, the 155gr match bullets from Sierra, Hornady, and Lapua don't seem to fall down as much beyond 300, at least on the 'puter (haven't been able to get them to stabilize w/ the gawd-awful jump to the lands on my as the 168grs. Combining the higher initial velocity, and a B.C. that isn't that far behind the 175gr bullets makes for some interesting reading. I'd love to experiment more, if I could get the 155s to shoot from my gun. I think that perhaps the extra fine-tuning of the 155s for Palma Match shooting contributes to their high B.C. for their relative weight/length, perhaps.

In any event, the proof is in the pudding. Shoot, and see how it works for you. Speaking of which, it's time for me to go to the range [img]images/icons/wink.gif[/img]

Later,

Monte
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