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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
If you could design a cartridge from scratch
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<blockquote data-quote="del2les" data-source="post: 2841072" data-attributes="member: 9299"><p>Instead of a new case/cartridge, I would like to design an improved bullet and powder/s.</p><p></p><p>As a bullet swager, years ago some of us played with powdered tungsten as a heavier than lead core material, and it gave impressive results in shorter, heavy bullets that could be stabilized in standard twist barrels of the day. Imagine a 75-77gr .224 bullet that would shoot in your 1/12tw .223 or 1/14tw 22-250, or a 110-115gr 6mm that worked well in the 1/10tw barrels.</p><p></p><p>Along those lines, I love playing around with sabot loads, so improving the sabot design/material and loads to reach much better rifle accuracy would be a great way to increase velocities without increasing case size and powder charge. In handguns, I have had some decent success in this, so I have given fair thought to producing a few select handgun loads for a special niche' market.</p><p></p><p><strong>Edit</strong>) Imagine a 30-06 case with a sabot 25cal that outperforms a 257WB, or a 338-06 case or similar with a sabot .277 bullet that out runs a 270WB or 270WSM. Similar with a 308 type of case or numerous others. I've loaded a 45-70 with a sabot 35cal 200gr SP to greatly improve BC, speed and range. Sabots have a far lower friction ration than jacket metals, and thus can be driven to higher vels than same weight at caliber bullets. Just look up the fastest 110gr load for a 30-06 or similar (<strong>3,600+fps</strong>) and imagine that is a 110gr 25cal or 100-105gr 6mm. Rinse and repeat for various calibers. <em>There is much advantage and untapped velocity potential in the bore expansion ratio with sub caliber bullets.</em></p><p></p><p>Powders have come a ways since my early days, but I believe there is an opportunity here. Similar to when we went from BP to smokeless, I think one day a new type of propellant will come on the scene.</p><p></p><p><strong>Edit)</strong> To add photos of 45 LC with 40 and 357 cal sabots for use in handguns and rifles. Second photo L to R: 460 S&W with 357 190gr WFN for handgun or rifle (<strong>3,100+fps in 20" barre</strong>l), 357 Max with 180SSP (Similar 35cal 180 and 200gr used in 460 or 45-70), and a 45LC with 40cal sabot with 200gr.</p></blockquote><p></p>
[QUOTE="del2les, post: 2841072, member: 9299"] Instead of a new case/cartridge, I would like to design an improved bullet and powder/s. As a bullet swager, years ago some of us played with powdered tungsten as a heavier than lead core material, and it gave impressive results in shorter, heavy bullets that could be stabilized in standard twist barrels of the day. Imagine a 75-77gr .224 bullet that would shoot in your 1/12tw .223 or 1/14tw 22-250, or a 110-115gr 6mm that worked well in the 1/10tw barrels. Along those lines, I love playing around with sabot loads, so improving the sabot design/material and loads to reach much better rifle accuracy would be a great way to increase velocities without increasing case size and powder charge. In handguns, I have had some decent success in this, so I have given fair thought to producing a few select handgun loads for a special niche' market. [B]Edit[/B]) Imagine a 30-06 case with a sabot 25cal that outperforms a 257WB, or a 338-06 case or similar with a sabot .277 bullet that out runs a 270WB or 270WSM. Similar with a 308 type of case or numerous others. I've loaded a 45-70 with a sabot 35cal 200gr SP to greatly improve BC, speed and range. Sabots have a far lower friction ration than jacket metals, and thus can be driven to higher vels than same weight at caliber bullets. Just look up the fastest 110gr load for a 30-06 or similar ([B]3,600+fps[/B]) and imagine that is a 110gr 25cal or 100-105gr 6mm. Rinse and repeat for various calibers. [I]There is much advantage and untapped velocity potential in the bore expansion ratio with sub caliber bullets.[/I] Powders have come a ways since my early days, but I believe there is an opportunity here. Similar to when we went from BP to smokeless, I think one day a new type of propellant will come on the scene. [B]Edit)[/B] To add photos of 45 LC with 40 and 357 cal sabots for use in handguns and rifles. Second photo L to R: 460 S&W with 357 190gr WFN for handgun or rifle ([B]3,100+fps in 20" barre[/B]l), 357 Max with 180SSP (Similar 35cal 180 and 200gr used in 460 or 45-70), and a 45LC with 40cal sabot with 200gr. [/QUOTE]
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