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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
BMG rifle barrels
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<blockquote data-quote="Fiftydriver" data-source="post: 265733" data-attributes="member: 10"><p>Of the barrels you list, the Lilja has the biggest following with 50BMG 1000 yard BR shooters. Lilja also contracts with several US military special forces for their 50 cal precision rifles.</p><p> </p><p>I have used several of their 50 cal barrels and all have been extemely impressive. I have also shot several Pac Nor and Kreiger 50 cal barrels. The Pac Nor were hit and miss with accuracy. All were 1.5 moa or better rifles, some were 3/4 moa. </p><p> </p><p>I have also shot the Lother Walter barrels on the LAR Grizzly rifles. They shoot very well but they are very hard and difficult to machine so I generally do not recommend them for a barrel blank for a custom rifle.</p><p> </p><p>The krieger was a good rifle but it fouled pretty heavily, I suspect it was not broken in properly. Barrel break in is extremely critical with a 50 cal.</p><p> </p><p>Groove design means very little in the 50 cals. I have seen 1/2 moa rifles in a wide range of groove designs. </p><p> </p><p>Twist rate is also an easy choice. 1-15 is what you need. No need for a fast twist. THe 1-15 will shoot any 50 cal bullet up to the 800 gr solid match bullets.</p><p> </p><p>In fact faster twists have some ill effects in the 50 BMG. Go with the standard twist. Do not try to reinvent the wheel, its been done and redone many times, 1-15 is the best way to go.</p><p> </p><p>Also, unless your wedded to a 36" barrel, its really not needed for the 50 BMG. Anything from 30-32" is plenty of barrel length. THe added performance you will get in a 36" barrel is really not worth the pain in the rear of dealing with all the extra length of barrel as far as handling the rifle.</p><p> </p><p>I would strongly recommend the Armalite muzzle brake. Its big and ugly and it flat out works better then any other 50 cal brake on the market. I took two shooters out today and shot a 50 BMG AR-50 I just got in for a customer and shooting my practice ammo, recoil was about like a 270 Win. This load consists of a 650 gr Winchester FMJ in Win cases loaded to 2700 fps with 225 gr WC872. They were keeping all their shots on my 20" diameter gong at 1010 yards once we get her dialed in. We put nearly 100 rounds of ammo through the rifle and we were all shooting in light shirts. The more you shot the rifle the funner it got because of the lack of recoil. </p><p> </p><p>You do have to get used to the muzzle blast but thats pretty easy to do. Get some good ear protection and eye protection and you will be fine.</p><p> </p><p>If it were me, it would be a Lilja SS barrel with an armalite muzzle brake.</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 265733, member: 10"] Of the barrels you list, the Lilja has the biggest following with 50BMG 1000 yard BR shooters. Lilja also contracts with several US military special forces for their 50 cal precision rifles. I have used several of their 50 cal barrels and all have been extemely impressive. I have also shot several Pac Nor and Kreiger 50 cal barrels. The Pac Nor were hit and miss with accuracy. All were 1.5 moa or better rifles, some were 3/4 moa. I have also shot the Lother Walter barrels on the LAR Grizzly rifles. They shoot very well but they are very hard and difficult to machine so I generally do not recommend them for a barrel blank for a custom rifle. The krieger was a good rifle but it fouled pretty heavily, I suspect it was not broken in properly. Barrel break in is extremely critical with a 50 cal. Groove design means very little in the 50 cals. I have seen 1/2 moa rifles in a wide range of groove designs. Twist rate is also an easy choice. 1-15 is what you need. No need for a fast twist. THe 1-15 will shoot any 50 cal bullet up to the 800 gr solid match bullets. In fact faster twists have some ill effects in the 50 BMG. Go with the standard twist. Do not try to reinvent the wheel, its been done and redone many times, 1-15 is the best way to go. Also, unless your wedded to a 36" barrel, its really not needed for the 50 BMG. Anything from 30-32" is plenty of barrel length. THe added performance you will get in a 36" barrel is really not worth the pain in the rear of dealing with all the extra length of barrel as far as handling the rifle. I would strongly recommend the Armalite muzzle brake. Its big and ugly and it flat out works better then any other 50 cal brake on the market. I took two shooters out today and shot a 50 BMG AR-50 I just got in for a customer and shooting my practice ammo, recoil was about like a 270 Win. This load consists of a 650 gr Winchester FMJ in Win cases loaded to 2700 fps with 225 gr WC872. They were keeping all their shots on my 20" diameter gong at 1010 yards once we get her dialed in. We put nearly 100 rounds of ammo through the rifle and we were all shooting in light shirts. The more you shot the rifle the funner it got because of the lack of recoil. You do have to get used to the muzzle blast but thats pretty easy to do. Get some good ear protection and eye protection and you will be fine. If it were me, it would be a Lilja SS barrel with an armalite muzzle brake. [/QUOTE]
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