Browning X-Bolt 2 McMillan Pro LR SPR
Browning Arms Company · Rifle · In Production · 2026
Also known as: X-Bolt 2 McMillan Pro LR SPR, X-Bolt 2 Pro McMillan SPR
Overview
The Browning X-Bolt 2 McMillan Pro LR SPR is a 2026 flagship long-range and suppressor-ready configuration of the second-generation X-Bolt 2 bolt-action rifle. SPR (Suppressor-Ready) models use a barrel roughly four inches shorter than the standard Pro LR to keep overall length manageable once a suppressor is fitted, with 5/8-24 muzzle threading capped by a Recoil Hawg radial muzzle brake. The rifle pairs a lightweight Pro receiver and spiral-fluted bolt with an ultralight aluminum bolt handle, a fluted heavy-sporter contour barrel, and the adjustable DLX trigger. It is built on a McMillan Game Warden 2.0 carbon-fiber stock with Vari-Tech adjustability for length of pull and comb height. Offered across a wide spread of precision chamberings, the model spearheads the introduction of the new .22 Creedmoor and .25 Creedmoor to the X-Bolt 2 lineup.
Specifications
| Weight (empty) | 3260 g (115.0 oz) |
| Overall Length | 965 mm (37.99") |
| Barrel Length | 457 mm (17.99") |
| Action Type | Bolt Action |
| Firing Mechanism | Hammer Fired |
| Trigger Type | Single Stage |
| Trigger Pull | 16 N (3.6 lbf) |
| Magazine Capacity | 5 rounds |
| Magazine Type | Rotary |
| Muzzle Velocity | 991 m/s (3251 fps) |
| Muzzle Energy | 2544 J (1876 ft·lbf) |
| Effective Range | 1000 m (1094 yd) |
| Barrel Rifling | Right Hand |
| Rifling Twist | 178 mm (7.01") |
| Number of Grooves | 6 |
| Frame Material | Steel |
| Barrel Material | Stainless Steel |
| Stock Material | Carbon Fiber |
| Finish | Cerakote |
Calibers
- 22 Creedmoor · primary — also known as 22 CM, .22 Creedmoor
- 25 Creedmoor — also known as 25 CM, .25 Creedmoor
- 6.5 PRC — also known as 6.5 Precision Rifle Cartridge
- .308 Winchester · 7.62x51mm NATO — also known as .308 Win, 7.62x51mm
- .300 Winchester Magnum — also known as .300 Win Mag, .300 WM
Features
- Firing modes: Repeating
- Feed systems: Detachable Box Magazine
- Safety mechanisms: Tang Safety, Bolt Unlock Button, Top Tang Safety
- Features: Mcmillan Game Warden 2 0 Stock, Carbon Fiber Stock, Vari Tech Adjustable Stock, Dlx Trigger, Adjustable Trigger, Spiral Fluted Bolt, Ultralight Aluminum Bolt Handle, Fluted Heavy Sporter Barrel, Recoil Hawg Muzzle Brake, Threaded Barrel, 5 8x24 Muzzle Threading, Suppressor Ready, Spr Short Barrel, Rotary Detachable Magazine, X Lock Scope Mounting, 60 Degree Bolt Lift, Free Floating Barrel
Base model
Service history
Operators
- United States Civilian Market
Production
Production years: 2026-present
Introduced for 2026 as the long-range suppressor-ready flagship of the X-Bolt 2 line; manufactured by Miroku Firearms in Kochi, Japan.
Origin
Country of origin: United States
Notes
Specifications reflect a short-action .22 Creedmoor SPR with an 18 in (457mm) fluted barrel and a 1:8 twist; other chamberings use 18 to 22 in barrels with weights from roughly 7 lb 3 oz to 7 lb 10 oz and magazine capacity 5-6 depending on cartridge. .22 and .25 Creedmoor variants use a stainless barrel with a matte finish; other calibers wear Carbon Gray Cerakote. Threaded 5/8-24 with a Recoil Hawg brake (Browning rates up to ~76% recoil reduction). Manufactured by Miroku in Japan. Caliber list also includes 6.8 Western, 7mm PRC, and .300 PRC.
Background
The McMillan Pro LR SPR debuted alongside Browning's adoption of the new .22 and .25 Creedmoor cartridges, marrying a McMillan Game Warden carbon-fiber stock and a suppressor-tuned short barrel into one of the lightest factory long-range hunting rifles Browning has ever cataloged.