Texasgrillchef
member
- Joined
- Jun 29, 2019
- Messages
- 700
I have the Ruger Super Redhawk 454 Casull whoch of course allows 45 colt standard pressure, 45 colt 30k pressure rounds and of course 454 casull rounds.
Using the Western Powders manual i noticed the following as an example.
Using. 300gr Lead cast flat point bullet with Accurate Nitro 100NF your min/max powder loads are from 3.3 to 3.8 grains with the max giving about 13k psi. Well within the standard SAAMI pressures for 45 colt.
A 30k loading with the exact same powder and projectile gives you a loading of 5.5 to 6.5 grains with the max loading giving you about 29k psi.
My educated guess and logic is that if i have a load between 3.8 grains and 5.5 grains (For use in my Super Redhawk) that it would still be safe but would give pressures greater then 13k and well below 29k since 5.5 is 1 full grain below the max of 6.5 which gives 29k psi?
What i have already worked up to tried and test fired with success is 6.5 grains.
So with that being the case loading with 5 grains should be ok, and be a lighter load. But only for this gun and should not use with my other 45 colts.
Good or bad logic???
Which brings me the point of what logic did they have for choosing 5.5 grains as the low end of a high pressure load instead of 5 grains? Or even 4.5 grains. Since any gun that can safely fire the 30k loads can safely fire the 14k loads?
Using the Western Powders manual i noticed the following as an example.
Using. 300gr Lead cast flat point bullet with Accurate Nitro 100NF your min/max powder loads are from 3.3 to 3.8 grains with the max giving about 13k psi. Well within the standard SAAMI pressures for 45 colt.
A 30k loading with the exact same powder and projectile gives you a loading of 5.5 to 6.5 grains with the max loading giving you about 29k psi.
My educated guess and logic is that if i have a load between 3.8 grains and 5.5 grains (For use in my Super Redhawk) that it would still be safe but would give pressures greater then 13k and well below 29k since 5.5 is 1 full grain below the max of 6.5 which gives 29k psi?
What i have already worked up to tried and test fired with success is 6.5 grains.
So with that being the case loading with 5 grains should be ok, and be a lighter load. But only for this gun and should not use with my other 45 colts.
Good or bad logic???
Which brings me the point of what logic did they have for choosing 5.5 grains as the low end of a high pressure load instead of 5 grains? Or even 4.5 grains. Since any gun that can safely fire the 30k loads can safely fire the 14k loads?