The average group size for the six different loads was just 1.5 inches. The Thumper’s accuracy certainly exceeded my expectations. With the scope’s magnification set on 4X, I placed the tip of the reticle’s red chevron on the 2-inch-diameter Shoot-N-C paster while adding the pressure necessary to break the Thumper’s heavy trigger. The best groups show in the accompanying accuracy table. I fired five shots for each group, and three groups for each type of ammunition. Then, after firing two 3-shot sighting groups, I pushed my target back to 50 yards, where I fired the rest of my groups for record. Initially I set up my target at 25 yards to get the scope dialed in. For the accuracy portion of the evaluation, I installed a Trijicon 1.25-4x24mm AccuPoint scope in an American Defense mount. I also used a Caldwell rifle rest to support the pistol’s handguard on top of the bench. I’ve had mine for about two years now, and the convenience it provides has paid for itself many times over. It takes less than two minutes to set up or tear down. This must-have piece of gear will give you the stability of a cement bench, yet it can still be packed away into just about any SUV. On an early spring day, I drove out to my secluded shooting spot in the Sonoran Desert and set up my DOA Shooting Bench. My test sample also had a standard AR trigger with all the creep and overtravel we normally associate with a military-style unit, and it broke with 5.75 pounds of pressure. Originally designed to help wounded warriors fire their AR pistols with one arm, this brace is made from a rubbery composite material that provides plenty of rigidity while maintaining a certain amount of flex. The Thumper also uses a Hogue beavertail pistol grip and, as mentioned before, comes equipped with an SB Tactical arm brace. (Photo by Alex Landeen)įolding Magpul MBUS sights are included along with a POF-USA end cap with a quick-detach sling swivel for use with a single-point sling. The gas block and tube are both covered by the handguard as well. The barrel also has a Melonite QPQ finish and, as I mentioned earlier, is fitted with a compensator. 450 Bushmaster projectiles, the medium-profile barrel has a 1-in-24-inch twist rate. Windham outfits the pistol with a free-floating, 7-inch, M-LOK handguard with a full-length Picatinny rail on top. 450 Bushmaster, when loaded with the right projectile, is designed to impart its bone-crushing energy on target rather than drill through it.Īs with just about all AR-15s, the Thumper’s receivers are machined from 7075-T6 aircraft-grade aluminum before being hardcoat anodized. That’s a whopping 40-percent more energy out of a semi-auto gun! While the energy level is close to that of the. 45-70 Government that our great-great-grandfathers used to knock down buffalo generated about 1,300 fpe. Even with the Thumper’s short barrel, the loads I tested came in at 2,200 foot-pounds of energy (fpe) on average. 450 Bushmaster cartridge, let me make some comparative examples. Its overall length of 26.25 inches makes it easily stowable in a bush plane or backpack, or instantly accessible when worn with a single-point sling. The 9-inch barrel is fitted with a very effective muzzle brake, so the Thumper is incredibly portable and would make an excellent choice for those who need bear protection without carrying a full-sized rifle. It’s also short and handy, weighing in at just 5.8 pounds unloaded. Based on the AR-15 platform, the Windham Thumper uses the direct-impingement operating system and features an SB Tactical stabilizing brace at the rear. 450 Bushmaster, and it made me wonder what the good colonel would think if he were here to handle and shoot the pistol. I recently got my hands on Windham Weaponry’s Thumper in. Gun Review: Windham Weaponry 300 Blackout AR-Style Pistol Windham Weaponry 450 Thumper Details
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