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Rifles, Reloading, Optics, Equipment
Gunsmithing
challenges with a barrel bedding block, long barrelled rifle
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<blockquote data-quote="wildcat westerner" data-source="post: 2991514" data-attributes="member: 21361"><p>Hello to everyone who has replied to this site.</p><p>Your trying to help me, so I shall try and supply you with more precise information. The barrel was built by Pence and fluted by Otto. It is a full 33 inches long and full length 1 1/2" in diameter. The barrel bedding block was created by my gunsmith and is thick walled industrial aluminum tubing and has a 1/2" thick 2 inches wide, aluminum block recoil lug heliarced? to it. The gunsmith relieved the areas where the 14 screws were drilled and tapped. After all this work was done, then it was the block was then cut in half lengthwise so the barrelled action could be fit into the block. The block was epoxied into an extremely stiff prone stock I had with nearly a full length bedding block already in it. The gunsmith relieved the barrel at bedding block site 1/4" so it would fit inside the bedding block. Even with the 1/4" relief all around the barrel at this site it is still a full inch thick at the barrel bedding site.</p><p> We used the existing stock action bedding to set the block into the stock., but the action is free floated above this bedding. The action is a Kelbly tactical, with a magazine. I have never attempted to use the magazine yet.</p><p>There is a muzzlebrake with vent holes only in the top half of the brake. I have shot regularly designed radial muzzle brakes from the prone and the ruckus raised by the gas action was Desert storm II!</p><p>All bullets fired so far have been meant for the old 33 Winchester lever action cartridge. Fine for velocity testing, but never meant to be shot at such high velocity. 100 fps velocity jumps in a big 338 caliber cartridge seems to really get attention on this site. MY next testing will be carefully done, as to watching for pressures. Then I will take the powder (s) tested and start working with REAL serious bullets meant for hunting purposes.</p><p>My background is target shooting at 1,000 yards. I know about precise reloading components etc. We have carefully chosen 50 of the most uniform 700 cases for this rifle. My choice for the .338 Win mag was because when you look at all the cases larger than this, and there are several, the win mag sems almost efficient in size, when you compare these cartridges' velocity for the powder used in these cases. I don't demean the Edge, Lapua or 338-378, I simply chose the win mag with this long barrel and it already exceed with the max listed 338 Lapua 200 grain reloads, with no pressure to this point. The accuracy is laughable, but to this early point I have yet to fire a serious ( Hammer, Barnes or BadLands precision) bullet down this barrel. I am assuming 2,000 rounds from this cartridge due to its bore diameter and the fact of the high velocity, so far comes from loads a lot smaller in size than from the much more larger cartridge cases. </p><p> So these are the choices I have made for this rifle. Some rifles in this caliber have really pushed me around on the bench. (338 lapua Improved and a 338-378 Weatherby). So far this rifle has been easy to shoot.</p><p></p><p>Thank you for your interest.</p></blockquote><p></p>
[QUOTE="wildcat westerner, post: 2991514, member: 21361"] Hello to everyone who has replied to this site. Your trying to help me, so I shall try and supply you with more precise information. The barrel was built by Pence and fluted by Otto. It is a full 33 inches long and full length 1 1/2" in diameter. The barrel bedding block was created by my gunsmith and is thick walled industrial aluminum tubing and has a 1/2" thick 2 inches wide, aluminum block recoil lug heliarced? to it. The gunsmith relieved the areas where the 14 screws were drilled and tapped. After all this work was done, then it was the block was then cut in half lengthwise so the barrelled action could be fit into the block. The block was epoxied into an extremely stiff prone stock I had with nearly a full length bedding block already in it. The gunsmith relieved the barrel at bedding block site 1/4" so it would fit inside the bedding block. Even with the 1/4" relief all around the barrel at this site it is still a full inch thick at the barrel bedding site. We used the existing stock action bedding to set the block into the stock., but the action is free floated above this bedding. The action is a Kelbly tactical, with a magazine. I have never attempted to use the magazine yet. There is a muzzlebrake with vent holes only in the top half of the brake. I have shot regularly designed radial muzzle brakes from the prone and the ruckus raised by the gas action was Desert storm II! All bullets fired so far have been meant for the old 33 Winchester lever action cartridge. Fine for velocity testing, but never meant to be shot at such high velocity. 100 fps velocity jumps in a big 338 caliber cartridge seems to really get attention on this site. MY next testing will be carefully done, as to watching for pressures. Then I will take the powder (s) tested and start working with REAL serious bullets meant for hunting purposes. My background is target shooting at 1,000 yards. I know about precise reloading components etc. We have carefully chosen 50 of the most uniform 700 cases for this rifle. My choice for the .338 Win mag was because when you look at all the cases larger than this, and there are several, the win mag sems almost efficient in size, when you compare these cartridges' velocity for the powder used in these cases. I don't demean the Edge, Lapua or 338-378, I simply chose the win mag with this long barrel and it already exceed with the max listed 338 Lapua 200 grain reloads, with no pressure to this point. The accuracy is laughable, but to this early point I have yet to fire a serious ( Hammer, Barnes or BadLands precision) bullet down this barrel. I am assuming 2,000 rounds from this cartridge due to its bore diameter and the fact of the high velocity, so far comes from loads a lot smaller in size than from the much more larger cartridge cases. So these are the choices I have made for this rifle. Some rifles in this caliber have really pushed me around on the bench. (338 lapua Improved and a 338-378 Weatherby). So far this rifle has been easy to shoot. Thank you for your interest. [/QUOTE]
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challenges with a barrel bedding block, long barrelled rifle
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