Gato Montés
Member
Complete noob question here but I need to know. What I've been told (and subsequently been doing) is determine if the data is for jacketed or lead, then find your bullet weight and bingo, there's your data.
Alright, let's look at my Lyman 49th edition manual for 38 Special.
For 158 grain they list what looks like a flat point bullet, which gives a range for W231 3.6 to a max of 4.0 grains.
For 160 grain LRN my powder of choice now has a wide range, from 3.5 all the way to 5.2 for +P pressures.
In the comments section, they claim that the 160 grain bullet I listed closely represents the factory 158 grain LRN.
I'm using SWC as my first bullets, which as I understand can share data with LRN's.
So, my question is this; how much importance does bullet type have in determining load data? Can I use the 160 grain data, or am I restricted to 3.6 to 4.0 grains?
Alright, let's look at my Lyman 49th edition manual for 38 Special.
For 158 grain they list what looks like a flat point bullet, which gives a range for W231 3.6 to a max of 4.0 grains.
For 160 grain LRN my powder of choice now has a wide range, from 3.5 all the way to 5.2 for +P pressures.
In the comments section, they claim that the 160 grain bullet I listed closely represents the factory 158 grain LRN.
I'm using SWC as my first bullets, which as I understand can share data with LRN's.
So, my question is this; how much importance does bullet type have in determining load data? Can I use the 160 grain data, or am I restricted to 3.6 to 4.0 grains?