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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Loose bore = Less Velocity?
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<blockquote data-quote="slikmrc" data-source="post: 2881361" data-attributes="member: 116436"><p>I had a fairly new FWT 25-06 barrel on a rifle I bought acting the same as what you were seeing. Barrel looked like the lapping process was missed, very prominent boring marks in the barrel. Tried JB and Iosso with little change, barrel was coppered up in 5 rounds and pressured up way below book max. I ran a full 50 round course of the Tubbs lapping bullets thru it and the rifle really came around. It still coppers up a bit after 30-40 rounds but is getting good speeds for a 22" barrel. The only reason I tried the lapping bullets is the cold bore and next two shoots out of it would stay at 1/2 moa. A sample of one, but the Tubbs bullets kept this barrel from heading to the garden for some staking duty.</p></blockquote><p></p>
[QUOTE="slikmrc, post: 2881361, member: 116436"] I had a fairly new FWT 25-06 barrel on a rifle I bought acting the same as what you were seeing. Barrel looked like the lapping process was missed, very prominent boring marks in the barrel. Tried JB and Iosso with little change, barrel was coppered up in 5 rounds and pressured up way below book max. I ran a full 50 round course of the Tubbs lapping bullets thru it and the rifle really came around. It still coppers up a bit after 30-40 rounds but is getting good speeds for a 22" barrel. The only reason I tried the lapping bullets is the cold bore and next two shoots out of it would stay at 1/2 moa. A sample of one, but the Tubbs bullets kept this barrel from heading to the garden for some staking duty. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Loose bore = Less Velocity?
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