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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
A-Max problem?
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<blockquote data-quote="Fiftydriver" data-source="post: 146725" data-attributes="member: 10"><p>I would agree, the 6mm SMK leaves a bit to be desired as far as on game performance. The A-Max would be much better. That was my thinking as well with my 6-284 but I could not see limiting my rifle to 3250 fps when it was built and easily capable if 3500 fps with this class bullet.</p><p></p><p>One more question, Are you seating the A-Max into the lands? This will be your best bet to get them to handle as much velocity as possible. YOu do not want that bullet to get linear velocity before engaging the rifling. You want it turning from the moment it starts down the barrel. </p><p></p><p>May have to drop your load off a bit if your off the lands now but 49.0 gr should not be a very hot load in a 6-284 unless the throat is VERY short.</p><p></p><p>I would be amazed if the Bergers acted any different then the A-Max. They have not in my experience but they are worth a try. In my rifles, they are limited to the same 3250-3300 fps as the A-Max.</p><p></p><p>With the 110 gr Wildcats, take 10% off your load to start with that bullet. For some reason, they seem to pressure up quicker then one would think. Once you find a comfortable starting point your fine but they do generate more pressure then a SMK will from what I have seen and heard. I believe they have a thicker jacket, at least the ones I have do.</p><p></p><p>One other option you may consider is the Berger 115 gr VLD. YOu could get up to the 3200 fps range and still get better expansion then a SMK. Higher BC as well.</p><p></p><p>From all the 6-284 I have built, I will never put another 1-8 twist on one that is ment to shoot the 105 to 107 gr bullets. The only barrel I will use is a 1-9 6 groove Lilja. With that barrel you can get 3500 fps with the A-Max easily. Amazing what an inch slower twist will do and a much thinner land for less baring surface compression.</p><p></p><p>Keep us posted.</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 146725, member: 10"] I would agree, the 6mm SMK leaves a bit to be desired as far as on game performance. The A-Max would be much better. That was my thinking as well with my 6-284 but I could not see limiting my rifle to 3250 fps when it was built and easily capable if 3500 fps with this class bullet. One more question, Are you seating the A-Max into the lands? This will be your best bet to get them to handle as much velocity as possible. YOu do not want that bullet to get linear velocity before engaging the rifling. You want it turning from the moment it starts down the barrel. May have to drop your load off a bit if your off the lands now but 49.0 gr should not be a very hot load in a 6-284 unless the throat is VERY short. I would be amazed if the Bergers acted any different then the A-Max. They have not in my experience but they are worth a try. In my rifles, they are limited to the same 3250-3300 fps as the A-Max. With the 110 gr Wildcats, take 10% off your load to start with that bullet. For some reason, they seem to pressure up quicker then one would think. Once you find a comfortable starting point your fine but they do generate more pressure then a SMK will from what I have seen and heard. I believe they have a thicker jacket, at least the ones I have do. One other option you may consider is the Berger 115 gr VLD. YOu could get up to the 3200 fps range and still get better expansion then a SMK. Higher BC as well. From all the 6-284 I have built, I will never put another 1-8 twist on one that is ment to shoot the 105 to 107 gr bullets. The only barrel I will use is a 1-9 6 groove Lilja. With that barrel you can get 3500 fps with the A-Max easily. Amazing what an inch slower twist will do and a much thinner land for less baring surface compression. Keep us posted. Kirby Allen(50) [/QUOTE]
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A-Max problem?
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