Originally Posted by
Idaholewis
I have always wondered why Green Mountain chose 1:30 Twist for their .45 Cal LRH when Their .50 and .54 Cal LRH is 1:28 Twist? Why change the .45 Cal? The .54 LRH would have made the most sense
The biggest reason GM went with the 1-30 twist was because of the bullets and the sabots available at that time. The torque created by the faster twist rate was just to fast for the Polymer sabots of the time to handle - so they would destroy themselves in the bore. Accuracy was terrible With the creation of the new Polymer formulas that has really strengthened the sabot they can with stand the twist.
This picture show a recovered White Power Star sabot recovered after shooting...
I have 3 of these 1:30 Twist GM .45 LRH Barrels, A Recently acquired Stainless, and 2 Blued. I have shot 1 of my Blued Barrels a TON, It has always shot DARN GOOD for me!! That said, My 1:20s Outshoot the 30 Twist