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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Ackley Improved
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<blockquote data-quote="CliffM" data-source="post: 281349" data-attributes="member: 11533"><p>Good morning, </p><p> I have an old savage rifle that I discovered had a 14 twist and it was hard to find bullet or load that would stay on a paper plate. I put a 10 twist Douglas barrel on and had it chambered in .250 Savage Imp. From dark to daylight! Fire forming loads would put everything tried into 2". My goal was to be able to shoot 100 gr. bullets at 3000 fps. I have gone up to 3100 but have settled on a load that does 3000 and will stay close to a 1/4" group. 75 gr. hollow points will shoot 1/2" more or less at 3400. The increase in velocity would be up to 200 fps over the standard .250 Savage. The case capacity is increased by about 12%. I believe that is the largest increases of all the improved cartridges Regrets, yep I've got 'em. It would be nice to have that cartridge in a better rifle. That old rifle has a rear locking bolt that limits the pressures that it can be loaded to without stretching the case and getting head separations. I've found that for the longest case life I use .243 brass that has the shoulder formed to have a fair bit of resistance to closing the bolt , resulting in no stretching of the case on the first firing. I don't think any other rifle would have issues. </p><p>I like the one A.I. that I have well enough to consider a second. I've shot an Win. M70 30-06 from day One and think it's come to the end of the trail. I've always wanted a 6.5 something and a 6.5-06 A.I. seems about right<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite11" alt=":rolleyes:" title="Roll Eyes :rolleyes:" loading="lazy" data-shortname=":rolleyes:" /> Cliff</p></blockquote><p></p>
[QUOTE="CliffM, post: 281349, member: 11533"] Good morning, I have an old savage rifle that I discovered had a 14 twist and it was hard to find bullet or load that would stay on a paper plate. I put a 10 twist Douglas barrel on and had it chambered in .250 Savage Imp. From dark to daylight! Fire forming loads would put everything tried into 2". My goal was to be able to shoot 100 gr. bullets at 3000 fps. I have gone up to 3100 but have settled on a load that does 3000 and will stay close to a 1/4" group. 75 gr. hollow points will shoot 1/2" more or less at 3400. The increase in velocity would be up to 200 fps over the standard .250 Savage. The case capacity is increased by about 12%. I believe that is the largest increases of all the improved cartridges Regrets, yep I've got 'em. It would be nice to have that cartridge in a better rifle. That old rifle has a rear locking bolt that limits the pressures that it can be loaded to without stretching the case and getting head separations. I've found that for the longest case life I use .243 brass that has the shoulder formed to have a fair bit of resistance to closing the bolt , resulting in no stretching of the case on the first firing. I don't think any other rifle would have issues. I like the one A.I. that I have well enough to consider a second. I've shot an Win. M70 30-06 from day One and think it's come to the end of the trail. I've always wanted a 6.5 something and a 6.5-06 A.I. seems about right:rolleyes: Cliff [/QUOTE]
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