Description
Keep a trusted .277 hunting rifle working in the 150-grain class
Some rifles earn confidence one range session and one season at a time. When that rifle has shown a preference for 150-grain bullets, an uneven component market should not force the handloader to abandon the weight or start the search from nothing.
Gold Country makes this .277 Viper as the flat-base path through that problem: a 150-grain, exposed-lead soft-point spitzer with copper-jacketed lead-core construction. This is a box of 50 component bullets, not loaded ammunition. It is made to order and normally fulfilled within seven business days.
Why the flat-base choice matters
The 150-grain Viper family is offered on separate pages so the buyer can choose base geometry deliberately. This listing is the flat-base version; the companion listing is the rebated-boat-tail version. The useful question is which construction fits the rifle, intended load and field purpose—not which label sounds more impressive.
What this component gives the handloader
- 150-grain .277-inch hunting-bullet weight
- Exposed-lead soft-point spitzer profile
- Flat-base geometry
- Copper jacket and lead core
- Hand-swaged, small-batch Gold Country production
Component specifications
- Manufacturer: Gold Country Ammo
- Bullet family: Viper
- Diameter: .277 inch
- Weight: 150 grains
- Profile: soft-point spitzer, flat base
- Quantity: 50 component bullets
- Production: made to order; normally fulfilled within seven business days
Choose the neighboring path
Choose the companion 150-grain rebated-boat-tail Viper when that geometry better fits the intended load. Move to the 140-grain Viper when the project calls for a middle-weight soft-point choice.
Cases, primers, powder and load data are not included. Use an appropriate published load-data source and verify cartridge compatibility, dimensions, seating, twist, firearm condition and safe function. Accuracy and terminal behavior depend on the completed load, firearm, velocity, distance and impact conditions.
No profile found for this bullet.
| Cartridge | Powder | Charge | Velocity | COAL | Source |
|---|---|---|---|---|---|
| 270 Winchester | RL-22 | 56.0-59.0 gr | 2800-2950 fps | 3.280" | Sierra Manual |





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