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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
300 PRC load info
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<blockquote data-quote="waveslayer" data-source="post: 1702637" data-attributes="member: 46202"><p>Even good brass will fire form, so no difference in the brass make. Brass thickness will change the case volume which will vary on each brand of brass. Lupua is just more consistent and thicker at times, makes for it lasting longer.</p><p></p><p>Depends on your load work up when it comes to what shoots better. Unfired brass usually has less case volume.. more pressure more velocity. Once fired depending on how you have your dies set will increase about 1gr in case volume. For big bore rifles that's about .4 gr of powder . For example my Lazzeroni with new brass takes 94.2 grains of Retumbo. Once fired takes 94.6 grains of Retumbo and I get the exact same velocity and POI.</p><p></p><p>Bottom line. No matter the brass maker, know what your chamber is. So test both. Measure before and after.</p><p></p><p>300 PRC unfired is 94.5 gr of case capacity, once fired in my chamber is 95.6, all verified by 20 different pieces of brass. Load it up in quickload and you will learn a lot about different brass makers. Its brass thickness which effects neck tension and case capacity... so if you make a good load with Winchester brass it will be as accurate as Lapua. It may not last as long, but in my .308 Winchester brass has been better than Lapua... for me that is.</p></blockquote><p></p>
[QUOTE="waveslayer, post: 1702637, member: 46202"] Even good brass will fire form, so no difference in the brass make. Brass thickness will change the case volume which will vary on each brand of brass. Lupua is just more consistent and thicker at times, makes for it lasting longer. Depends on your load work up when it comes to what shoots better. Unfired brass usually has less case volume.. more pressure more velocity. Once fired depending on how you have your dies set will increase about 1gr in case volume. For big bore rifles that's about .4 gr of powder . For example my Lazzeroni with new brass takes 94.2 grains of Retumbo. Once fired takes 94.6 grains of Retumbo and I get the exact same velocity and POI. Bottom line. No matter the brass maker, know what your chamber is. So test both. Measure before and after. 300 PRC unfired is 94.5 gr of case capacity, once fired in my chamber is 95.6, all verified by 20 different pieces of brass. Load it up in quickload and you will learn a lot about different brass makers. Its brass thickness which effects neck tension and case capacity... so if you make a good load with Winchester brass it will be as accurate as Lapua. It may not last as long, but in my .308 Winchester brass has been better than Lapua... for me that is. [/QUOTE]
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300 PRC load info
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