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Many years ago I had the barrel of a Rem. 700 Classic .250 Savage turned down to build a lighter weight gun. I bedded the action and the barrel was free floating. The gun never settled in, I could never get 3 shots to group well. I put it away for 15 years and now I'm fiddling with it again. One of my thoughts was the thin barrel was the culprit, vibrating, etc., so I placed a dollop of bedding at the tip of the forend to give the barrel some support. I put release agent on the barrel and tightened the action into the stock while the epoxy cured but when I put the scope back on and checked with the boresight installed it's obvious the barrel is now pointing skywards to the tune of 20" at 100yds by the boresighter. Gonna grind the epoxy out and start again, what's the procedure to do a bedded pad at the tip to keep the barrel from bending upwards? thanks, Rob | ||
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fold a business card and slide it in from the tip - you can change the pressure point and amount of pressure that way - it usually doesn't take much #dumptrump opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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I always bed the first 3 inches of the barrel in front of the action also. I have had great luck with that. I do that before messing with the forefend tip | |||
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After your barrel was turned down, was it stress relieved? Maybe a cryo treatment would help. | |||
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You said your barrel was NOT pointing skywards; what is the problem? I bed the first two inches of the barrel; leave the rest free floating. If you want upward pressure use a card like Jeff said. However, turning down a factory barrel is a bad idea; likely it will never shoot. .5 probability. Which means flip a coin. Ruger used upward forearm tip pressure to to make the cheap Wilson barrels shoot. | |||
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I do the hang 10 lbs off the barrel with stock in vice. then i cut strips of note card and fill the gap, then add one more. torque to 35 inch lbs. go to rang and shoot, remove one strip at a time and re torque to 35 inch lbs. when group comes together i go back and cut note card strips so that i can bed in between them and torque to 35 with epoxy in the tip. has worked for every long/ light contour barrel so far. can explain in more detail if needed. | |||
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I always bed the straight shank of the barrel attached to the action. If the barrel gets thinner from the action bed, bed 2-3 inches of it attached to the action. The rest is free floating. Works every time. | |||
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Assuming the action is properly bedded, you should be able to get the correct upward pressure by putt6ing one layer of masking tape just behind the recoil lug to align the action while the epoxy sets. The important thing is to not tighten the guard screws too much; just enough to contact. After the epoxy has set, remove the tape and it should work out. You want around 5 to 7 pounds of upward pressure. Was the barrel re-crowned after it was turned down? This is a potential issue. I have turned down many factory barrels (at least a couple hundred), with a lot of them being Remingtons, and I have never had any issue with warpage or stress. If the barrel shot well before turning, it shot well after. Regards, Bill. | |||
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I bought a older pre 64 Winchester mod 70 heavy target rifle years ago ..220 swift ... The gunsmith that owned it shot benchrest match competition.. He had installed a custom very fine thread machine screw in the bottom of the forearm . It had a detent arrangement so you could adjust slight pressure on bottom of that barrel , It had a 14 power unertel scope with a 1/4 minute Lee dot installed... This rifle will shoot very tight groups at 100 yards with special handloads The pressure adjustment on the barrel was a new concept to me , but it evidently worked .. I was always free floating everything before that I free floated a ruger #1 , and it shot terrible.... I had to put a pressure point back in the forearm DRSS Chapuis 9.3 x 74 R RSM. 416 Rigby RSM 375 H&H | |||
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How could I screw up so bad. The barrel is now indeed pointing skyward, too much pressure from the pad. I'm going to pull it apart and check the original bedding to see how far out I went with it. The barrel was turned down by McGowen, not sure how it shot before. It was recrowned and cryo'd. This was my first project gun back in 1997... | |||
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You have 3 options IMO, bed it tight from crown to tang, 3 point bedding at tang, recoil lug,tip, and lastly free floating..there is no best way, only the gun can tell you that and should be done in that order as you can remove wood but you cannot put it back. With plastic or Composits it makes no difference in the order, as you use glass bedding. When I bed a stock of wood, I first bed it tight then to the bench to test; if it works IM done, if not I 3 point it and test it, if not right I free float it..If it won't shoot its time to get a new barrel.. The gun decides the bedding procedure. not the stock maker or owner..and all are different and inity unto themselves...The many claims that fwt rifles favor 3 pint bedding, std wt favor free floating, etc is bad press by a little knowledge is a __________ thing, pick your own word  Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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I have quite a few rifles. Many came with a forend pressure bump. That bump was removed and all had the first 2-3 inches bedded and the rest of the barrel floated. They are all quite accurate. NRA Patron member | |||
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I have used the business card method or cut piece of a cereal box on two rifles and it works well. The great thing is you have the avility to try different thicknesses and get instatneous feedback at the range by adding or subtracting or moving. Once you find what works, glue it in place and spray it with some clear finish to waterproof it and prevent the "paper material" from swelling. Mike Never under estimate the internet community's ability to reply to your post with their personal rant about their tangentially related, single occurrence issue.  What I have learned on AR, since 2001: 1. The proper answer to: Where is the best place in town to get a steak dinner? is…You should go to Mel's Diner and get the fried chicken. 2. Big game animals can tell the difference between .015 of an inch in diameter, 15 grains of bullet weight, and 150 fps. 3. There is a difference in the performance of two identical projectiles launched at the same velocity if they came from different cartridges. 4. While a double rifle is the perfect DGR, every 375HH bolt gun needs to be modified to carry at least 5 down. 5. While a floor plate and detachable box magazine both use a mechanical latch, only the floor plate latch is reliable. Disregard the fact that every modern military rifle uses a detachable box magazine. 6. The Remington 700 is unreliable regardless of the fact it is the basis of the USMC M40 sniper rifle for 40+ years with no changes to the receiver or extractor and is the choice of more military and law enforcement sniper units than any other rifle. 7. PF actions are not suitable for a DGR and it is irrelevant that the M1, M14, M16, & AK47 which were designed for hunting men that can shoot back are all PF actions. 8. 95 deg F in Africa is different than 95 deg F in TX or CA and that is why you must worry about ammunition temperature in Africa (even though most safaris take place in winter) but not in TX or in CA. 9. The size of a ding in a gun's finish doesn't matter, what matters is whether it’s a safe ding or not. 10. 1 in a row is a trend, 2 in a row is statistically significant, and 3 in a row is an irrefutable fact. 11. Never buy a WSM or RCM cartridge for a safari rifle or your go to rifle in the USA because if they lose your ammo you can't find replacement ammo but don't worry 280 Rem, 338-06, 35 Whelen, and all Weatherby cartridges abound in Africa and back country stores. 12. A well hit animal can run 75 yds. in the open and suddenly drop with no initial blood trail, but the one I shot from 200 yds. away that ran 10 yds. and disappeared into a thicket and was not found was lost because the bullet penciled thru. I am 100% certain of this even though I have no physical evidence. 13. A 300 Win Mag is a 500 yard elk cartridge but a 308 Win is not a 300 yard elk cartridge even though the same bullet is travelling at the same velocity at those respective distances. | |||
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Hey Mike, laminated paper is a common composite - just an unconventional way to "Cast" it in place -- i like it #dumptrump opinions vary band of bubbas and STC hunting Club Information on Ammoguide about the416AR, 458AR, 470AR, 500AR What is an AR round? Case Drawings 416-458-470AR and 500AR. 476AR, http://www.weaponsmith.com | |||
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Bob, Did you check for a bent barrel? A couple wooden v blocks and a dial indicator will confirm or rule that out right quickly. CB
Life itself is a gift. Live it up if you can. | |||
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Additionally to my above post which was dealing with a hand inletted custom stock, If I was attempting to make a factory gun shoot I would use shims as described by some to make it shoot to my satisfaction then glass bed it to match..saves a lot of wasted time.. Ray Atkinson Atkinson Hunting Adventures 10 Ward Lane, Filer, Idaho, 83328 208-731-4120 rayatkinsonhunting@gmail.com | |||
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