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Rifles, Reloading, Optics, Equipment
Reloading
7mm Berger 168's & 180 targets
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<blockquote data-quote="FearNoWind" data-source="post: 1211340" data-attributes="member: 50867"><p>Yes, it is a pretty light load by Berger SAAMI standards. When I started with this rifle I used RL17; there wasn't much data available for it using that powder. Comparing it to similar powders on the burn rate charts I worked up a very nice load; but it was very temp. sensitive. After perhaps a year I decided to try Hodgdon powder and relied on Hodgdon data; but they don't list anything heavier than 175 grain for .284 Winchester. The range for 175s is 52 - 57 grains in the Hodgdon book so I started with 51 grains with the 180s and worked up. Everything above the 52.3 grains of H4831 starts opening up on target and by the time I go upwards of 53 grains I was getting heavy bolt lift and ejector branding. I'm not working with a SAAMI spec. chambering (my chamber is a custom reamer cut and quite a bit tighter than SAAMI) so I'm pretty cautious how far I push the limits. At this time, even with the light loads, I'm getting excellent results out to 1K, eventhough my 2875+/- MV is lower than I'd like - requires me to work harder with the wind.</p></blockquote><p></p>
[QUOTE="FearNoWind, post: 1211340, member: 50867"] Yes, it is a pretty light load by Berger SAAMI standards. When I started with this rifle I used RL17; there wasn't much data available for it using that powder. Comparing it to similar powders on the burn rate charts I worked up a very nice load; but it was very temp. sensitive. After perhaps a year I decided to try Hodgdon powder and relied on Hodgdon data; but they don't list anything heavier than 175 grain for .284 Winchester. The range for 175s is 52 - 57 grains in the Hodgdon book so I started with 51 grains with the 180s and worked up. Everything above the 52.3 grains of H4831 starts opening up on target and by the time I go upwards of 53 grains I was getting heavy bolt lift and ejector branding. I'm not working with a SAAMI spec. chambering (my chamber is a custom reamer cut and quite a bit tighter than SAAMI) so I'm pretty cautious how far I push the limits. At this time, even with the light loads, I'm getting excellent results out to 1K, eventhough my 2875+/- MV is lower than I'd like - requires me to work harder with the wind. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
7mm Berger 168's & 180 targets
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