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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Long range weatherby guys
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<blockquote data-quote="sable tireur" data-source="post: 1209294" data-attributes="member: 27307"><p>No offense intended but I think that you're overworking this a tad bit.</p><p></p><p></p><p> Speaking in generalities, shorter, slightly heavier barrels are the easiest to tune for a node. Case in point are the short range benchrest shooters and their 20-22" barrels. But this isn't necessarily the best combination for a case which holds 100 grains of water and can utilize 200 grain + bullets. So yes, in answer to your question, I think that a heavier, longer barrel would be more applicable than the pencil thin factory barrels.</p><p></p><p></p><p> What are the chances of ¼ MOA rifle? This will depend on the gunsmith, the barrel and the machining of the barrel with the action. Best accuracy is achieved when the bore of the action is in perfect alignment with the bore of the barrel. Everything is straight. This includes the chamber in the barrel as well. If the bullet is seated straight and the cartridge is chambered straight then the rifle ought to shoot up to your ability to guide it based on the load. In my experience, ¼ MOA barrels in this configuration are a bit rare, at least consistently ¼ MOA, not the once or twice ¼ MOA groups. Usually we will see a definite trend towards a 3/8 – ½ MOA rifle consistently with the 1/2MOA being the usual. You're building a hunting rifle not a benchrest rifle. If you want to shoot long range benchrest then we need to discuss a different configuration.</p><p></p><p></p><p> I just finished a .300 Weatherby hunting rifle with a 26" barrel + a brake. The contour is a #4 Bartlein although it is not a Bartlein barrel. This has a muzzle diameter of 0.750" at 26". The action is a new stainless steel Remington 700 completely blueprinted. The barreled action is bedded into an HS Precision Sendero style stock with the bedding block. Currently it is using the standard Remington BDL bottom metal although I'm getting ready to change it out for a detachable box system. </p><p></p><p></p><p></p><p> The initial loads were Berger 210 gr. VLD hunting bullets seated at 3.560" over a full charge of either Re-25 or IMR-7828 for a MV of 3050 fps. These printed ½" groups at 100 yards consistently after a short break in. I also reduced the MV by switching to a couple of cooler powders to see if slightly slower velocities and the potential of a longer barrel life would still hold the same accuracy which they did. The MV was 100 fps slower with the same ½" 100 yard groups.</p><p></p><p></p><p> Regards.</p></blockquote><p></p>
[QUOTE="sable tireur, post: 1209294, member: 27307"] No offense intended but I think that you’re overworking this a tad bit. Speaking in generalities, shorter, slightly heavier barrels are the easiest to tune for a node. Case in point are the short range benchrest shooters and their 20-22” barrels. But this isn’t necessarily the best combination for a case which holds 100 grains of water and can utilize 200 grain + bullets. So yes, in answer to your question, I think that a heavier, longer barrel would be more applicable than the pencil thin factory barrels. What are the chances of ¼ MOA rifle? This will depend on the gunsmith, the barrel and the machining of the barrel with the action. Best accuracy is achieved when the bore of the action is in perfect alignment with the bore of the barrel. Everything is straight. This includes the chamber in the barrel as well. If the bullet is seated straight and the cartridge is chambered straight then the rifle ought to shoot up to your ability to guide it based on the load. In my experience, ¼ MOA barrels in this configuration are a bit rare, at least consistently ¼ MOA, not the once or twice ¼ MOA groups. Usually we will see a definite trend towards a 3/8 – ½ MOA rifle consistently with the 1/2MOA being the usual. You’re building a hunting rifle not a benchrest rifle. If you want to shoot long range benchrest then we need to discuss a different configuration. I just finished a .300 Weatherby hunting rifle with a 26” barrel + a brake. The contour is a #4 Bartlein although it is not a Bartlein barrel. This has a muzzle diameter of 0.750” at 26”. The action is a new stainless steel Remington 700 completely blueprinted. The barreled action is bedded into an HS Precision Sendero style stock with the bedding block. Currently it is using the standard Remington BDL bottom metal although I’m getting ready to change it out for a detachable box system. The initial loads were Berger 210 gr. VLD hunting bullets seated at 3.560” over a full charge of either Re-25 or IMR-7828 for a MV of 3050 fps. These printed ½” groups at 100 yards consistently after a short break in. I also reduced the MV by switching to a couple of cooler powders to see if slightly slower velocities and the potential of a longer barrel life would still hold the same accuracy which they did. The MV was 100 fps slower with the same ½” 100 yard groups. Regards. [/QUOTE]
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