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Another 6mm Remington AI "the bug bites again"
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<blockquote data-quote="VinceMule" data-source="post: 2482810" data-attributes="member: 122164"><p>All of us old timmers learned long ago to have loads for hot weather. At 95* use 3g less powder, you will be good to go....760 rocks with 70g. No matter what powder you use, at 95*, there will be a pressure change from a load worked up at 65*. If you chronograph your load when you work it up at 65*, then back off 5g and work up at 95*, when you hit that same velocity, you will hit a home run.</p><p></p><p>AA2700 is an excellent powder for the 6 AI and is one of the coolest burning powders ever made, next would be N160 and N165. These cool burning powders sure add barrel life, but you have to think like an advanced reloader in terms of temp changes.</p><p></p><p>Back in the late 70's up until the early 90's, we shot many, many thousands of p dogs every year with all kinds of temp-sensitive powders since that was all that was available.</p><p></p><p>On the 87's, R#19 and IMR 4831 are excellent for speed and accuracy. For 500 and under, I prefer the 80g Sierra Blitz BT where AA2700 shines and gives much longer barrel life. We marked our ammo boxes, "Cold Weather" or "Hot Weather".</p><p></p><p>Today we are fortunate to have the extreme powders, but I still verify my loads. It is normal to vary powder charges on Varget and H4350 .5-1.0g for HOT weather vs 65" temp for bug hole loads.</p><p></p><p>I use a set of form dies made by Paul Bike, they are nothing short of fantastic, and fire form the same as Hugnot. It is easy to form 8x57 brass into 6 Remington, then fire form, neck turning maybe required depending on your chamber dimensions.</p></blockquote><p></p>
[QUOTE="VinceMule, post: 2482810, member: 122164"] All of us old timmers learned long ago to have loads for hot weather. At 95* use 3g less powder, you will be good to go....760 rocks with 70g. No matter what powder you use, at 95*, there will be a pressure change from a load worked up at 65*. If you chronograph your load when you work it up at 65*, then back off 5g and work up at 95*, when you hit that same velocity, you will hit a home run. AA2700 is an excellent powder for the 6 AI and is one of the coolest burning powders ever made, next would be N160 and N165. These cool burning powders sure add barrel life, but you have to think like an advanced reloader in terms of temp changes. Back in the late 70's up until the early 90's, we shot many, many thousands of p dogs every year with all kinds of temp-sensitive powders since that was all that was available. On the 87's, R#19 and IMR 4831 are excellent for speed and accuracy. For 500 and under, I prefer the 80g Sierra Blitz BT where AA2700 shines and gives much longer barrel life. We marked our ammo boxes, "Cold Weather" or "Hot Weather". Today we are fortunate to have the extreme powders, but I still verify my loads. It is normal to vary powder charges on Varget and H4350 .5-1.0g for HOT weather vs 65" temp for bug hole loads. I use a set of form dies made by Paul Bike, they are nothing short of fantastic, and fire form the same as Hugnot. It is easy to form 8x57 brass into 6 Remington, then fire form, neck turning maybe required depending on your chamber dimensions. [/QUOTE]
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Another 6mm Remington AI "the bug bites again"
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