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Long Range Hunting & Shooting
Accurizing advise for 300 WSM
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<blockquote data-quote="Jeff In TX" data-source="post: 154786" data-attributes="member: 1522"><p>Telkev,</p><p></p><p>Two years ago I bought a Winchester Model 70 Featherweight in 300 WSM which I topped with a Burris 4.5-14 X 32mm Short Mag scope and Burris Signature rings. It's a fantastic setup for hunting moose in Alaska which was why I purchased it. Now I'm using it on hogs here in Texas.</p><p></p><p>I immediately had George at GAP do a trigger job on it when I picked the rifle up in KC. At the range I was very disappointed as I was getting 2 to 3+" groups with Fed Premium 180 gr Barnes triple shock factory ammo. My first two rounds were always under an inch, but the third round would fly left 2 or 3+" every time. I sent the gun back to George at GAP where he hand lapped the factory barrel and bedded the stock, I also had him black Teflon coat the barreled action. </p><p></p><p>BTW, Georges closing statement to me was, "you know you're not going to be happy with the accuracy and I'm probably going to have to re-barrel it for you".</p><p></p><p>Back at the range I hoping for a descent improvement and was I shocked. My first 3-round group was just over .5" @ 100 yards. No flyers and rock solid accuracy. My subsequence 3-shot groups all measured in the .5", .6" and no larger than .75" @ 100 yards with factory ammo. For a 7.5 pound hunting rifle I'll take that all day long. I sent George a photo of the groups and said I'll keep this set up. Not sure what made the bigger the difference, bedding or lapping the barrel. I'm betting it was bedding the stock and not the lapping of the barrel as I'll explain.</p><p></p><p>When I went to cleaning the rifle I found my factory barrel fouled like hell. Not surprising as most factory barrels will foul. Even using wipeout and letting it sit overnight it still took some scrubbing. Last month I found out why. We looked at the barrel with a bore scope and the entire length of the barrel is pitted like the moon. No amount of hand lapping could have fixed all this pitting. It still shoots great, but the inside finish of the barrel is the worst my smith and the other smiths who looked at it had ever seen. </p><p></p><p>Moral to this story, leave the copper fouling in. This rifle only sees a handful of rounds every year. Despite the interior finish of the barrel the rifle still shoots .75" or better each and every time. </p><p></p><p>I wish you the best on your new rifle, as I love mine.</p></blockquote><p></p>
[QUOTE="Jeff In TX, post: 154786, member: 1522"] Telkev, Two years ago I bought a Winchester Model 70 Featherweight in 300 WSM which I topped with a Burris 4.5-14 X 32mm Short Mag scope and Burris Signature rings. It’s a fantastic setup for hunting moose in Alaska which was why I purchased it. Now I’m using it on hogs here in Texas. I immediately had George at GAP do a trigger job on it when I picked the rifle up in KC. At the range I was very disappointed as I was getting 2 to 3+” groups with Fed Premium 180 gr Barnes triple shock factory ammo. My first two rounds were always under an inch, but the third round would fly left 2 or 3+” every time. I sent the gun back to George at GAP where he hand lapped the factory barrel and bedded the stock, I also had him black Teflon coat the barreled action. BTW, Georges closing statement to me was, “you know you’re not going to be happy with the accuracy and I’m probably going to have to re-barrel it for you”. Back at the range I hoping for a descent improvement and was I shocked. My first 3-round group was just over .5” @ 100 yards. No flyers and rock solid accuracy. My subsequence 3-shot groups all measured in the .5”, .6” and no larger than .75” @ 100 yards with factory ammo. For a 7.5 pound hunting rifle I’ll take that all day long. I sent George a photo of the groups and said I’ll keep this set up. Not sure what made the bigger the difference, bedding or lapping the barrel. I’m betting it was bedding the stock and not the lapping of the barrel as I’ll explain. When I went to cleaning the rifle I found my factory barrel fouled like hell. Not surprising as most factory barrels will foul. Even using wipeout and letting it sit overnight it still took some scrubbing. Last month I found out why. We looked at the barrel with a bore scope and the entire length of the barrel is pitted like the moon. No amount of hand lapping could have fixed all this pitting. It still shoots great, but the inside finish of the barrel is the worst my smith and the other smiths who looked at it had ever seen. Moral to this story, leave the copper fouling in. This rifle only sees a handful of rounds every year. Despite the interior finish of the barrel the rifle still shoots .75” or better each and every time. I wish you the best on your new rifle, as I love mine. [/QUOTE]
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