270 cal 170gr Extreme Outer Limits Elite Hunter
Berger’s latest addition to the hunting line is another design inspired by Extreme Outer Limits (EOL); the 270 caliber 170 grain Elite Hunter.
This bullet is designed for maximum external and terminal ballistic performance in 270 caliber rifles which have twist rates faster than the traditional 1:10”.
Nearly all rifles chambered for 270 caliber are fitted with 1:10” twist barrels. This relatively slow twist limits the length, weight and BC of bullets that can be stabilized. Typically, the heaviest 270 bullets are around 150 grains because that is all that can be stabilized in a 1:10” twist. However, if a faster twist barrel is used for a 270 rifle, it can stabilize a much longer, heavier and higher BC bullet.
Measurements are for reference only and may vary slightly between lots.
The newly designed 170 grain EOL Elite Hunter from Berger has a higher Sectional Density (SD) and Ballistic Coefficient (BC) than any other 270 hunting bullet in existence.
The Hybrid design blends the best aspects of the tangent and secant ogives. It starts at the bearing surface with a tangent section that will align itself more effectively when the bullet contacts the rifling. Beyond this section the shape transitions into a secant section which is proven to be to more effective in the wind. The result is a high BC bullet that is easy to tune.
The high BC allows the bullet to retain velocity better downrange which means less drop, less wind drift and a higher velocity impact with the target. The high SD gives the bullet enormous penetration potential on medium and big game animals.
These bullets are made with the longest possible Hybrid ogive. The long nose produces the highest possible BC but does not comply with the limitations of SAAMI and CIP COAL standards. This bullet is deliberately intended for hunters who use custom rifles and either have extended length magazines or single feed their ammo.
|[?]Variance in BC
This table shows you how the BC of your bullet changes with velocity as your bullet flies downrange. The G1 BC typically changes a great deal more than the G7 BC over the same range, which is why the G7 BC is recommended for more accurate trajectory predictions over long range. The chart below lists the long range average BC’s for this bullet.
|Above 3000 fps||3000-2500 fps||2500-2000 fps||2000-1500 fps||Below 1500 fps|
It’s very important to understand the stability requirements of this new bullet. Most 270 rifles do not have a fast enough twist barrel. For full stability, Berger recommends a 1:8.7” twist or faster. The bullet can achieve minimal/marginal stability in a 1:10” twist barrel.
Extreme Outer Limits (EOL) MOA rifles are made with faster than standard twist rates to stabilize the highest performance bullets.
The Extreme Outer Limits MOA line of rifles are made with faster-than-conventional twist rates to stabilize such long, high performance bullets. The 270 caliber MOA rifle comes with a 1:8.5” twist, which is plenty of twist to stabilize the new Berger 170 grain EOL Elite Hunter in all conditions.
|[?]A stability factor below 1.0 indicates instability, bullet will tumble. Between 1.0 and 1.5 is marginal stability. In this condition the bullet will fly point forward and groups can be good, but the BC will be depressed below its full potential. Marginal stability may be OK if you’re only shooting short range. For full stability, maximum BC, and optimal performance at long range, the stability factor needs to be 1.5 or higher. Stability Factor|
|Barrel Twist||Best Case||Nominal||Worst Case|
Your Custom Stability Analysis
Remember that although this new high BC, heavy-for-caliber bullet is great for long range, it’s also an excellent option for hunting at any range. The high sectional density of heavy-for-caliber bullets promotes greater penetration than lighter, faster bullets. If you’ve been considering the 270 for larger game and are concerned about the penetration potential of conventional options, this bullet is the answer.