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Rifles, Reloading, Optics, Equipment
Gunsmithing
Sako TRG-S .338 Lapua Build
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<blockquote data-quote="Rymart" data-source="post: 461326" data-attributes="member: 3688"><p>Here's what I did:</p><p></p><p>Started off with the standard TRG-s in 338 LM. Put it in a McMillan A5 stock with bottom metal provided by McMillan. Magazine hardware from the original stock was transferred to the McMillan. Recoil lug in the original stock was transferred to the McMillan stock also, and a Badger Ordinance recoil lug was also added. The stock was pillar bedded and glass bedded with Marine Tex (thus the lug in the stock was enlarged to match the recess on the action and a recess was cut for the Badger Ordinance recoil lug). Effectively, the rifle is 'double recoil lugged'... not my choice, but very solid. GA Precicion did the work. The rifle was rebarrelled with a 27" Bartlein 5R in the Light Palma Contour (0.70" at the muzzle), 1:10 twist. The barrel was chambered by GA Precision and has a min spec chamber. A US Optics 20MOA rail was added... it fits the dovetails on the action, but was also drilled and tapped with four 8x40 screws and 'loc tighted' to the action. A Defensive Edge muzzle brake was installed. The original trigger is awsome, no changes made to that.</p><p></p><p>The factory magazine sucks, but I live with it. At the range I single feed. When hunting I use a rubber band to hold the bottom of the magazine flush with the bottom of the rifle or I use camo duck tape to hold it flush. This improves reliability but looks 'rinky-dinky'. </p><p></p><p>I get around 0.5" to 0.7" groups at 100 yards, with some smaller groups here and there. Holds sub MOA out to 810 yards (Furthest I've grouped it at) as long as the wind isn't too bad. I use 300 gr SMK's with 92 gr H1000 and Federal 215M primers. Jump the SMK's about 0.020". I get 2805 fps average with single digit ES and SD. FYI, that's a pretty stiff load.</p><p></p><p>I use a Redding Competiton neck sizer die with a 0.365 bushing. Bump the shoulder back 0.003" with the body die and seat with a Redding Competition Seater die.</p><p></p><p>By the way, the manual said the factory barrel was a 1:12 twist, but upon testing I found it to be a 1:10. Same result in my dads' TRG-s. He did something similar with his, but used a laminate stock and still has the factory barrel. His groups improved a lot with the change of stock and the bedding work.</p><p></p><p>PM me to get my number if you want to call and discuss this more.</p></blockquote><p></p>
[QUOTE="Rymart, post: 461326, member: 3688"] Here's what I did: Started off with the standard TRG-s in 338 LM. Put it in a McMillan A5 stock with bottom metal provided by McMillan. Magazine hardware from the original stock was transferred to the McMillan. Recoil lug in the original stock was transferred to the McMillan stock also, and a Badger Ordinance recoil lug was also added. The stock was pillar bedded and glass bedded with Marine Tex (thus the lug in the stock was enlarged to match the recess on the action and a recess was cut for the Badger Ordinance recoil lug). Effectively, the rifle is 'double recoil lugged'... not my choice, but very solid. GA Precicion did the work. The rifle was rebarrelled with a 27" Bartlein 5R in the Light Palma Contour (0.70" at the muzzle), 1:10 twist. The barrel was chambered by GA Precision and has a min spec chamber. A US Optics 20MOA rail was added... it fits the dovetails on the action, but was also drilled and tapped with four 8x40 screws and 'loc tighted' to the action. A Defensive Edge muzzle brake was installed. The original trigger is awsome, no changes made to that. The factory magazine sucks, but I live with it. At the range I single feed. When hunting I use a rubber band to hold the bottom of the magazine flush with the bottom of the rifle or I use camo duck tape to hold it flush. This improves reliability but looks 'rinky-dinky'. I get around 0.5" to 0.7" groups at 100 yards, with some smaller groups here and there. Holds sub MOA out to 810 yards (Furthest I've grouped it at) as long as the wind isn't too bad. I use 300 gr SMK's with 92 gr H1000 and Federal 215M primers. Jump the SMK's about 0.020". I get 2805 fps average with single digit ES and SD. FYI, that's a pretty stiff load. I use a Redding Competiton neck sizer die with a 0.365 bushing. Bump the shoulder back 0.003" with the body die and seat with a Redding Competition Seater die. By the way, the manual said the factory barrel was a 1:12 twist, but upon testing I found it to be a 1:10. Same result in my dads' TRG-s. He did something similar with his, but used a laminate stock and still has the factory barrel. His groups improved a lot with the change of stock and the bedding work. PM me to get my number if you want to call and discuss this more. [/QUOTE]
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Sako TRG-S .338 Lapua Build
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