what caliber would have recoil/power to a .303

happykal

happykal

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The Mrs. caught me looking at another lee enfield I was thinking of purchasing. There's nothing wrong with mine other then the fugly syntheic stock and some backyard gunsmith honed out the peep sight with a drill bit. Thank god they didn't touch the flip up sight. I want and think I deserve something better.

She agrees with me.....i marked it on the calender, must have been a blue moon out.... any way she say's the the gun is ugly, but if I'm going to buy a rifle buy a new one not an old one. I want another gun, preferably with open sights, that has the equivalent power and recoil of a .303 round. I love that I can fire a few boxes at the range and not break the bank or my shoulder.
 
TDC said:
30-06 offers no advantage over .308 with nothing but increased recoil and costs. 7x57 isn't nearly as popular as .308.

TDC
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Flatly wrong. Take a look at the 380 vs 30-06 when loading a 180 grain bullet. 308 is vastly inferior in trajectory and energy with 180gr bullets.

It just so happens that 180gr in .308 is also the best balance of sectional density and bc.
 
Idcurrie said:
Flatly wrong. Take a look at the 380 vs 30-06 when loading a 180 grain bullet. 308 is vastly inferior in trajectory and energy with 180gr bullets.
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Flatly wrong .... To those who would ponder the facts and ignore what their wives say on such things, the difference between a 308 and 30/06 is hardly "vast". ;)

Idcurrie said:
It just so happens that 180gr in .308 is also the best balance of sectional density and bc.
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Wouldn't those same bestly balanced SDs and BCs apply to any 30cal rifle? :confused:

.
 
happykal said:
.... any way she say's the the gun is ugly, but if I'm going to buy a rifle buy a new one not an old one. I want another gun, preferably with open sights, that has the equivalent power and recoil of a .303 round. I love that I can fire a few boxes at the range and not break the bank or my shoulder.
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1. Go 308! Easy to shoot. Lots of reasonably priced ammo, EVERYWHERE! Accurate.

2. Forget the open sights. They offer very little over a good scope set-up. Buy a decent 2x7 scope and you're set for anything/anywhere.

.
 
To those who would ponder the facts and ignore what their wives say on such things, the difference between a 308 and 30/06 is hardly "vast".
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Actually it is quite vast when looking at 180gr pills. This is because the .308 cartridge loses too much case capacity with that large bullet.

Wouldn't those same bestly balanced SDs and BCs apply to any 30cal rifle?
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Yes, obviously. The 180gr offers the best SD and BC in any 30 cal cartridge. The problem with 308 is that it doesn't have enough case capacity to shoot 180gr bullets as well as it shoots smaller bullets. This makes the 30'06 actually quite superior.

2700 fps 30'06
2570 fps 308

2913 ft/lb energy 30'06
2640 ft/lb energy 308

7.0" wind drift 300y 30'06
7.5" wind drift 300y 308

-14.5" drop 300y 30'06
-16.4" drop 300y 308

Take note that not only is the 308 inferior to the 30'06, it also loses to a 270 shooting a 130 grain pill in both downrange energy, speed, wind drift, and drop.

The ONLY advantage the 308 can actually offer over either the 30'06 or 270 is a shorter case length. Whooptie-do!

The 308 does not too bad when shooting 150 grain pills but when it has to step up to the 308 bullet with the best sd and bc it simply cannot handle it as well as the 30'06.

I don't take my cartridge advice from my Wife. She's ill informed on them. I look at the facts. Maybe you should do the same ;)
 
TDC said:
30-06 offers no advantage over .308 with nothing but increased recoil and costs. 7x57 isn't nearly as popular as .308.

TDC
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Since when was chosing a cartridge a popularity contest. There is also the 7mm-08 which is almost as good as the 7x57, although it hasn't got the same case capicity.
 
my speer no 11 shows all of 200 fps and 10 more grains of powder to make the difference between an 06 and a 308- using your beloved 180 grain bullets- moreoever, there's all of ELEVEN YARDS difference mpbr between the 2- and the 180 is NOT the best 30 caliber bullet ; the 165, both in terms of b/c and s/d - look it up
i also don't know where you're getting velocities for your 06/308, but my speer shows 2644 for the 308, and i can tell you that WINCHESTER FACTORY moves out at 2610- i've shot that over a chrony and verified
 
Idcurrie said:
Flatly wrong. Take a look at the 380 vs 30-06 when loading a 180 grain bullet. 308 is vastly inferior in trajectory and energy with 180gr bullets.

It just so happens that 180gr in .308 is also the best balance of sectional density and bc.
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With 180gr bullets, the .308 Win has 95% the muzzle velocity and 90% the muzzle energy of the 30-06. Plus, at 100 yards, the velocity of the 30-06 has dropped below the muzzle velocity of the .308. Basically, at 50 yards, the 180gr 30-06 has equal velocity and energy to that of a 180gr .308 at the muzzle. As for bullet drop, the .308 has an extra 2" of drop at 300 yards. Plus, assuming that the rifles weigh the same, the 30-06 has about 17% more recoil energy.

Hardly a "vast" increase in performance, and at the cost of increased recoil.

The data I used is from Federal factory loads.
 
Idcurrie said:
Actually it is quite vast when looking at 180gr pills. This is because the .308 cartridge loses too much case capacity with that large bullet.




2700 fps 30'06
2570 fps 308

2913 ft/lb energy 30'06
2640 ft/lb energy 308

7.0" wind drift 300y 30'06
7.5" wind drift 300y 308

-14.5" drop 300y 30'06
-16.4" drop 300y 308
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And in the real world a 1/2 inch of wind drift and 1.9 inches of drop at 300 yards and 130 fps means what exactly to make a 'vast' difference?
 
pharaoh2 said:
And in the real world a 1/2 inch of wind drift and 1.9 inches of drop at 300 yards and 130 fps means what exactly to make a 'vast' difference?
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If you calculate the variance as a percent, SFA. At 50 yards, Idcurrie's beloved 30-06 is equivalent to a .308 at the muzzle. Not that I don't think the 30-06 is a good cartridge, because it is, but the gains in terms of muzzle energy and velocity over the .308 are marginal at best.
 
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and the 180 is NOT the best 30 caliber bullet ; the 165, both in terms of b/c and s/d -
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You don't know what you're talking about. The 180 has both better sectional density and balistic co-efficient.

look it up
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Don't mind if I do:

165gr bc 0.475 sd 0.248
180gr bc 0.507 sd 0.271


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