G1 and G7 are different models of drag functions that measure ballistic coefficient. Ballistic Coefficient or B.C. is a measurement (or prediction in a lot of cases) of how fast a bullet slows down in a given distance with a given velocity. G1 and G7 both measure the aerodynamic qualities of a bullet but use different models to do so. Much like miles and kilometers are both units commonly used to measure distance, or Fahrenheit and Celsius are commonly used to measure temperature; both examples show that different numbers can exist for the same measurement. For example, one mile is roughly 1.609 kilometers and 32 degrees Fahrenheit is approximately 0 degrees Celsius. Same is true for G1 and G7; the G1 B.C. of a .308-210gr AccuBond® LR bullet is .730 while the G7 B.C. of the same bullet is .366. The G1 model is based off of a stocky, flat base bullet template while the G7 model is based around a match style, boat-tail bullet template. It is argued that the G7 drag function is more accurate when calculating bullet drop of longer, sleeker bullets while the G1 drag function is more accurate when calculating old fashioned, flat base bullets.Tags: Ballistics
- Last update:
- 2014-10-08 17:47
- John Bullet
You cannot comment on this entry
- The 280 Ackley Improved – which version do I have, and is it ok to shoot with factory ammo?
- What is the Maximum Overall Cartridge Length listed in your reloading manual?
- How to measure your rifle’s seating depth.
- Is there a lead shortage?
- What is the difference between G1 and G7 Ballistic Coefficient?
- How is it possible to get over 100% load density?
- Service, Troubleshooting, and Returns
- Why should I use Nosler Reloading Products?
- Why should I use Nosler Ammunition?
- Out of Stock / Product Availability
AccuBond Elk Sporting Handgun Trophy Grade Varmint Rifle Custom Competition Safari ABLR E-Tip Match Grade Rifle Ballistic Tip Varmint Customer Feedback Hollow Point Long Range Solid Partition Nosler Rifles Barrels 28 Nosler Muzzle Brake Custom Rifles Ammunition Barrel Break-In Trophy Grade Long Range Reloading Ballistics Vertical Lines Lands Competition CC Targets Dangerous Game Brass Ballistic Tip Muzzleloader Ballistic Tip Lead Free 280 Ackley Reloading Guide Seating Nosler Cartridge re-chamber availability bullets BTLF out of stock Primer Pockets Muzzleloader BTMZ Bonded Solid Base 26 Nosler CTBST
Excellence - Integrity - Service
115 SW Columbia St | Bend, Oregon, USA 97702 | Toll Free: 1-800-285-3701 | email@example.com
Nosler Showroom / Open to the Public: Monday - Friday 10:00 am to 5:30 pm PST
Corporate Hours: Monday - Friday 8:00 am to 4:30 pm PST