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New Fierce Rifle not grouping as expected
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<blockquote data-quote="johnnyk" data-source="post: 1720544" data-attributes="member: 307"><p>I have recently worked on two rifles with similar results. Neither were $4500 rifles but still a new rifle should shoot better than 3-4" groups at 100yds, even with factory ammo. This was even with hand loads.</p><p>The first was a .308Win. A Savage M12 barrel but a model 10 action and it would not shoot under 2.5" at 100yds. I tried numerous bullet/powder/primer combinations through Lapua brass. I bedded the HS Precision stock and that helped a lot, as in got it down to .75". At this point I felt I didn't have a lot to loose so I tried the brass screw with valve grinding compound to smooth out the crown. Silence......cricket chirping....you have got to be kidding me! I could not believe it, I was very surprised with the results.</p><p>I cleaned up the barrel and tried the very same load I had just gotten .75" from, three more stacked on top of each other! I went back inside and loaded 5 more and they, combined with those first 3 went in to .4".</p><p>I ran over 200 rds through that barrel before I tried this trick. It may not work for everyone and I don't blame you if you don't want to try it on your expensive, custom, high dollar rifle but I can attest that it worked for me.</p><p></p><p>Just last week a cousin of my wife brings me his new Browning Bar III, .270 WSM with Leupold Vari-X III, 3.5-10X50 asking me to take a look at it and see if I can get it to shoot any better. He indicated with his hands that it was shooting saucer (4-5") size groups at 100yds. He had shot several different brands of factory fodder with not a lot of hope.</p><p>My first group with his Browning BXR 135gn ammo printed 2.5" from my bench. He was surprised and pleased. Then he confessed all his "patterns" were with a Lead-sled. I've no experience with these contraptions so I can speak either way.</p><p>I loaded 3 130gn Ballistic Tips with IMR 4955/CCI 250 and they printed a 4" group at 100yds. Did the brass screw/lapping compound trick last night, cleaned up the barrel and first light this morning that same load printed a 1" group (averaging 3185fps)! No load development, just the first load I came up with (65gn IMR4955/CCI250).</p><p>I plan to load a few more with increasing charges up to about 67.5ish and see if it gets any tighter.</p><p>Total cost is less than $5, more like $3. YMMV</p><p></p><p>[MEDIA=youtube]qoSI_O3Oc3w[/MEDIA]</p></blockquote><p></p>
[QUOTE="johnnyk, post: 1720544, member: 307"] I have recently worked on two rifles with similar results. Neither were $4500 rifles but still a new rifle should shoot better than 3-4" groups at 100yds, even with factory ammo. This was even with hand loads. The first was a .308Win. A Savage M12 barrel but a model 10 action and it would not shoot under 2.5" at 100yds. I tried numerous bullet/powder/primer combinations through Lapua brass. I bedded the HS Precision stock and that helped a lot, as in got it down to .75". At this point I felt I didn't have a lot to loose so I tried the brass screw with valve grinding compound to smooth out the crown. Silence......cricket chirping....you have got to be kidding me! I could not believe it, I was very surprised with the results. I cleaned up the barrel and tried the very same load I had just gotten .75" from, three more stacked on top of each other! I went back inside and loaded 5 more and they, combined with those first 3 went in to .4". I ran over 200 rds through that barrel before I tried this trick. It may not work for everyone and I don't blame you if you don't want to try it on your expensive, custom, high dollar rifle but I can attest that it worked for me. Just last week a cousin of my wife brings me his new Browning Bar III, .270 WSM with Leupold Vari-X III, 3.5-10X50 asking me to take a look at it and see if I can get it to shoot any better. He indicated with his hands that it was shooting saucer (4-5") size groups at 100yds. He had shot several different brands of factory fodder with not a lot of hope. My first group with his Browning BXR 135gn ammo printed 2.5" from my bench. He was surprised and pleased. Then he confessed all his "patterns" were with a Lead-sled. I've no experience with these contraptions so I can speak either way. I loaded 3 130gn Ballistic Tips with IMR 4955/CCI 250 and they printed a 4" group at 100yds. Did the brass screw/lapping compound trick last night, cleaned up the barrel and first light this morning that same load printed a 1" group (averaging 3185fps)! No load development, just the first load I came up with (65gn IMR4955/CCI250). I plan to load a few more with increasing charges up to about 67.5ish and see if it gets any tighter. Total cost is less than $5, more like $3. YMMV [MEDIA=youtube]qoSI_O3Oc3w[/MEDIA] [/QUOTE]
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New Fierce Rifle not grouping as expected
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