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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Where to start seating A-Max and SMK?
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<blockquote data-quote="johnnyk" data-source="post: 426989" data-attributes="member: 307"><p>I start every bullet, regardless of the ogive, at .010" off the lands and from there adjust the powder up.</p><p>I have had problems in the past finding accurate loads with Hornady SST's and Berger VLD's. The SST's were the 7mm 154gn and I have not been able to get them to consistently print groups under .75" in two different rifles (a Sendero and 700P). The Bergers were the 7mm 168gn and I shot the whole box (100ct) looking for a accuracy load. That was in the 700P mentioned above. That same 700P will shoot the 150gn Nolser Ballistic Tip into the .2-.3" range with consistency.</p><p>It is sometimes harder to find a consistent, accurate load for a secant ogive but I have never seen a scientific theory or proof as to why this is. If this was the case, I guess Weatherby's (with their freebore) wouldn't accurately shoot secant ogive bullets. I don't know this to be fact, just cynical reasoning. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> I would imagine someone out there has a Weatherby that can stack A-Max's on top of each other.</p><p>I swore off Hornady bullets a few years back. I was tired of buying those red and white boxes and not being able to get the "gilt-edge" accuracy that I was getting with Ballistic Tips. In most of the heavy barrel rifles that I shoot, I usually can get the BT's to shoot in the .2's and .3's, where with A-max's, V-max's and SST's I worked hard to get .4's. I burned alot of powder in my searches.</p><p>I recently bought some .30 cal 178gn A-Max's and have been betting good accuracy and groups from them. They are shooting sub .5's at 100yds, and this evening I shot a sub 2.5" group at 500yds with them in my .300WinMag. Not world class but pretty good for my old eyes and stock factory Savage. JohnnyK.</p></blockquote><p></p>
[QUOTE="johnnyk, post: 426989, member: 307"] I start every bullet, regardless of the ogive, at .010" off the lands and from there adjust the powder up. I have had problems in the past finding accurate loads with Hornady SST's and Berger VLD's. The SST's were the 7mm 154gn and I have not been able to get them to consistently print groups under .75" in two different rifles (a Sendero and 700P). The Bergers were the 7mm 168gn and I shot the whole box (100ct) looking for a accuracy load. That was in the 700P mentioned above. That same 700P will shoot the 150gn Nolser Ballistic Tip into the .2-.3" range with consistency. It is sometimes harder to find a consistent, accurate load for a secant ogive but I have never seen a scientific theory or proof as to why this is. If this was the case, I guess Weatherby's (with their freebore) wouldn't accurately shoot secant ogive bullets. I don't know this to be fact, just cynical reasoning. :) I would imagine someone out there has a Weatherby that can stack A-Max's on top of each other. I swore off Hornady bullets a few years back. I was tired of buying those red and white boxes and not being able to get the "gilt-edge" accuracy that I was getting with Ballistic Tips. In most of the heavy barrel rifles that I shoot, I usually can get the BT's to shoot in the .2's and .3's, where with A-max's, V-max's and SST's I worked hard to get .4's. I burned alot of powder in my searches. I recently bought some .30 cal 178gn A-Max's and have been betting good accuracy and groups from them. They are shooting sub .5's at 100yds, and this evening I shot a sub 2.5" group at 500yds with them in my .300WinMag. Not world class but pretty good for my old eyes and stock factory Savage. JohnnyK. [/QUOTE]
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Where to start seating A-Max and SMK?
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