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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Testing two rifles, identical chambers ...different barrels
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<blockquote data-quote="Black Diamond 408" data-source="post: 112724" data-attributes="member: 1563"><p>Fifty,</p><p></p><p> That group average was from three different loads, 148,149,150. They all shot about the same, speeds were real close, the 148 shows the least pressure signs. This gun is the one i personally fluted the barrel, very deep i may add, and thought maybe it would need to be stress relived and re-lapped. Groups were not this good from the start or even after 50 rounds or so. The bbl was copper fouling bad from the start, even with carful break in. I was in contact with several bbl makers and they thought i should re-lap the bbl as it maybe to smooth inside. Then after getting the ABS-Mike Rock bbl and talking with Mike about his process for break in i ordered a Moly Kit from Sentry Solutions and did the rock bbl. It broke in very fast! Very little copper at all using this system, i thought well lets give it a try on my gun. I completly cleaned my bbl, as well as i could, started the moly break in on my bbl, fired the 20 shots that is recomended, cleaned the gun and the groups shrunk in half. The last upgrade the rifle needed was a better trigger, fixed that problem and here we are. All i can say is the gun shoots way better than i can! There maybe lots of luck involved as the test didnt span a large number of shots. But this is just a carry hunting rifle and several shots is all i ever use for testing this type of rifle. The bbl will get hot fast, 148grns will really heat er' up! To say the least i am very happy with the gun /ubbthreads/images/graemlins/grin.gif It will prolly end up in some hunters gun cabinet. </p><p> I only have one gun i will never sell, it was my dads Browning superposed he bought new in 59 and completly wore out hunting ducks and pheasants with. He gave it to me to do a sporting clays project, i cut off the bbls out of the breech block and completly re-barreled it similar to a Kreigof over and under, only i used my big bore system, it has twin 16ga tubes and chambered for 20ga. The bottom bbl is 60% high shooting and the top bbl is 0% (dead on) for the second shots in sporting clays, both bbls have long screw in choke tubes. I had the reciever nickel plated, put an adjustable comb on the stock, had the bbls engraved and blued. The gun is one of a kind. I gave it to my dad to shoot the 20 ga class, but he had a stroke and the gun was too heavy to use so he gave it too me. I used it in competion for several years until he no longer could compete, i only did so we could still shoot together. I use it occasionlly to hunt pheasants and quail. I should get it out and post a couple pics for the heck of it. Its the only custom o/u i ever will do. It was more work than building a rifle from scratch!</p><p></p><p>I bet black sunshine will do that, just got to get out and shoooot her! 7" group at 1500yds is pretty **** impressive. There are guys that will give their left one for that at 1000yds, or closer.</p><p></p><p>Dave</p></blockquote><p></p>
[QUOTE="Black Diamond 408, post: 112724, member: 1563"] Fifty, That group average was from three different loads, 148,149,150. They all shot about the same, speeds were real close, the 148 shows the least pressure signs. This gun is the one i personally fluted the barrel, very deep i may add, and thought maybe it would need to be stress relived and re-lapped. Groups were not this good from the start or even after 50 rounds or so. The bbl was copper fouling bad from the start, even with carful break in. I was in contact with several bbl makers and they thought i should re-lap the bbl as it maybe to smooth inside. Then after getting the ABS-Mike Rock bbl and talking with Mike about his process for break in i ordered a Moly Kit from Sentry Solutions and did the rock bbl. It broke in very fast! Very little copper at all using this system, i thought well lets give it a try on my gun. I completly cleaned my bbl, as well as i could, started the moly break in on my bbl, fired the 20 shots that is recomended, cleaned the gun and the groups shrunk in half. The last upgrade the rifle needed was a better trigger, fixed that problem and here we are. All i can say is the gun shoots way better than i can! There maybe lots of luck involved as the test didnt span a large number of shots. But this is just a carry hunting rifle and several shots is all i ever use for testing this type of rifle. The bbl will get hot fast, 148grns will really heat er' up! To say the least i am very happy with the gun [img]/ubbthreads/images/graemlins/grin.gif[/img] It will prolly end up in some hunters gun cabinet. I only have one gun i will never sell, it was my dads Browning superposed he bought new in 59 and completly wore out hunting ducks and pheasants with. He gave it to me to do a sporting clays project, i cut off the bbls out of the breech block and completly re-barreled it similar to a Kreigof over and under, only i used my big bore system, it has twin 16ga tubes and chambered for 20ga. The bottom bbl is 60% high shooting and the top bbl is 0% (dead on) for the second shots in sporting clays, both bbls have long screw in choke tubes. I had the reciever nickel plated, put an adjustable comb on the stock, had the bbls engraved and blued. The gun is one of a kind. I gave it to my dad to shoot the 20 ga class, but he had a stroke and the gun was too heavy to use so he gave it too me. I used it in competion for several years until he no longer could compete, i only did so we could still shoot together. I use it occasionlly to hunt pheasants and quail. I should get it out and post a couple pics for the heck of it. Its the only custom o/u i ever will do. It was more work than building a rifle from scratch! I bet black sunshine will do that, just got to get out and shoooot her! 7" group at 1500yds is pretty **** impressive. There are guys that will give their left one for that at 1000yds, or closer. Dave [/QUOTE]
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Testing two rifles, identical chambers ...different barrels
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