This question is another example of why slugs can be frustrating. We all look for proven data because we want shortcuts. Plain and simple. I have slug guns in two calibers but really focused on one caliber for maybe 5 years now. Glem and Motorhead gave pretty broad speed ranges but no definitive data and here’s why. I have a .25 barrel that has no choke. The gun shoots very well at 960fps. Probably better than most guys slug guns. But I know that my slug stats and speed are slow for my twist rate so I push the speed upwards and things get better. I’m not happy about how fast the gun is and how hard I’m pushing it but one would think, ok this is solid data. A shortcut. The thing is in 30 minutes I can slip a FX barrel back onto the gun and produce great accuracy that goes against everything the other barrel taught me. The slug is going way too slow for what the twist rate is telling me. I had a gun and slug combo that always wound up at 935fps. Didn’t matter what transfer port mods, reg pressures from 125-150b, after twisting knobs and turning screws when I found great accuracy and sent a couple across the chronograph, 935fps. For me, definitive data is barrel, gun, and slug specific. There is very little that I will paint with a broad brush when it comes to slugs except you can hope to get lucky, buy a gun with a proven leade that likes a particular slug or you have your work cut out for you depending how picky you are. How picky am I? Just so you know when you read my posts, if slugs in my guns won’t match or exceed a pellets accuracy and just as important consistency, they are worthless. Not worth the aggravation of not knowing if you’re shooting Dr. Jekyll or Mr. Hyde every time I grab the gun.
