.45-70 Shotshell Assembly for Accurate .410 Rifle Feeding
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Solution Overview
Problem
The incompatibility between.45-70 rifle cartridges and.410 shotshells results in accuracy issues and improper feeding when attempting to fire.410 shotshells from a.45-70 rifle, limiting its use to large game and preventing its effective use for small game.
Innovation Solution
The development of an unloaded.45-70 shotshell that incorporates a.410 hull into a modified.45-70 rifle cartridge casing, allowing conventional loading and firing from a.45-70 rifle, with the.410 hull retained by adhesive or crimping, enabling use for both large and small game.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a .410 shotshell is fired from a .45-70 rifle, then the rifle can be used for small game hunting, but accuracy is detrimentally affected and feeding is improper
Solution Approach 1:
The patent applies nesting by placing a .410 shotshell inside a .45-70 rifle cartridge casing. The .410 shotshell (containing hull, wad, shot/slug, and primer) is inserted into the larger .45-70 casing, creating a nested configuration that allows the smaller caliber ammunition to be fired from a larger rifle while maintaining proper fit and accuracy
2Adaptability or versatility
If a .410 shotshell is fired from a .45-70 rifle, then small game hunting capability is added, but feeding in the magazine is improper
Solution Approach 1:
By nesting the .410 shotshell within the .45-70 cartridge casing, the overall dimensions and feeding profile match the .45-70 rifle's magazine specifications. This allows the modified cartridge to feed properly through the rifle's magazine system while still enabling small game hunting capability
Solution Approach 2:
The invention creates a multi-functional ammunition system where a single .45-70 rifle can fire both traditional .45-70 rifle cartridges for large game and the modified .45-70/.410 nested shotshells for small game, eliminating the need for a separate .410 shotgun
3Ease of manufacture
If conventional reloading methods are used for .45-70 cartridges with shot, then the process is tedious and impractical, but this is the only way to load shot in a .45-70 cartridge
Solution Approach 1:
The patent applies preliminary action by pre-assembling complete .410 shotshells (with hull, wad, shot/slug, and primer already in place) before inserting them into the .45-70 cartridge casing. This eliminates the need for tedious manual loading of individual shot pellets or slugs into the .45-70 cartridge, as the shotshell is already prepared and ready for insertion
Solution Approach 2:
The .410 shotshell serves as an intermediary component that simplifies the loading process. Instead of directly loading shot and wads into a .45-70 cartridge, the pre-assembled .410 shotshell acts as a mediator that can be easily inserted into the .45-70 casing, making the overall process much more practical and efficient
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution improves accuracy and allows a.45-70 rifle to be used for both large and small game, utilizing readily available components and maintaining compatibility with.45-70 rifles.
Implementation Method 1
the.410 hull retained by adhesive or crimping
Data Source
AI summary
A .45-70 shotshell is made using a .45-70 shotshell base and a .410 shotshell hull. The hull is received and retained in the shotshell base. The shotshell base may be formed from a .45-70 rifle cartridge.