loophole
08-22-2006, 12:06 PM
I've been shooting cast boolits for 30 years--I think I know all the basics. I have a couple of 45-70's that regularly shoot 5-shot groups into 1 moa at 100 yds, and some leverguns that will hold 3 shots in 2" or less at that range, if I do my part. I have a couple of 218 Bees that ought to shoot better than what I'm getting.
The Ruger No 1 (14" twist) will put 50 and 55 gr Nosler Ballistic tips and Hornaday SX's into 7/8 inch or less at 100 yds. I've used two molds--a 55 gr RCBS and a 60 gr Saeco, bullets weight sorted, gas checks, rcbs rifle lube sized .224 and .225, Lyman #2 and Linotype. I've tried about every powder listed in 4 different reloading manuals, and I cannot get consistent MOA groups. I've tried velocities between 1600 and 2200 fps. The best groups are about 1-1/2 moa using a case full of AA2015Br or Data 2200. It doesn't seem to matter whether the alloy is Lyman no2 or Lino, or whether they are sized .224 or .225.
It's pretty much the same story with the Mod 65 Browning. I use a globe front and lyman tang sight. I can shoot near 1/2" groups with this gun at 50 yds when there is no wind, using 4227 and Horn 45 gr. HP Bee bullits. At the same distance it won't do much better than 3 shots in 1" with either of the cast slugs.
I know the 16" twist is not optimum for the 55 and 60 gr boolits, but I've shot 50 and 55 gr jacketed--single loaded--much better than what I can do with the cast.
There must be some deep, dark secrets involved with 22 cal. Any ideas?
The Ruger No 1 (14" twist) will put 50 and 55 gr Nosler Ballistic tips and Hornaday SX's into 7/8 inch or less at 100 yds. I've used two molds--a 55 gr RCBS and a 60 gr Saeco, bullets weight sorted, gas checks, rcbs rifle lube sized .224 and .225, Lyman #2 and Linotype. I've tried about every powder listed in 4 different reloading manuals, and I cannot get consistent MOA groups. I've tried velocities between 1600 and 2200 fps. The best groups are about 1-1/2 moa using a case full of AA2015Br or Data 2200. It doesn't seem to matter whether the alloy is Lyman no2 or Lino, or whether they are sized .224 or .225.
It's pretty much the same story with the Mod 65 Browning. I use a globe front and lyman tang sight. I can shoot near 1/2" groups with this gun at 50 yds when there is no wind, using 4227 and Horn 45 gr. HP Bee bullits. At the same distance it won't do much better than 3 shots in 1" with either of the cast slugs.
I know the 16" twist is not optimum for the 55 and 60 gr boolits, but I've shot 50 and 55 gr jacketed--single loaded--much better than what I can do with the cast.
There must be some deep, dark secrets involved with 22 cal. Any ideas?