Best test is to seat a bullet on a case that full of powder, pull the bullet then see if any particles are broken apart. Too much powder if any are broken. Agree, drop tubes help.Sierra manual says 24.6 IMR 4895 is max load for 52 gr . 24.5 fills it to the brim , is compressing powder that much ok ?
Thanks , Kenneth
Best test is to seat a bullet on a case that full of powder, pull the bullet then see if any particles are broken apart. Too much powder if any are broken. Agree, drop tubes help.
In the heyday of 222 Rem in benchrest, a favorite load with 50 to 52 grain bullets was around 21 grains of IMR4198. That was also Sierra's load testing those caliber's weights for quality until the 22 PPC came out.
Bart,Best test is to seat a bullet on a case that full of powder, pull the bullet then see if any particles are broken apart. Too much powder if any are broken. Agree, drop tubes help.
In the heyday of 222 Rem in benchrest, a favorite load with 50 to 52 grain bullets was around 21 grains of IMR4198. That was also Sierra's load testing those caliber's weights for quality until the 22 PPC came out.
With some longer stick powders (4831) had different broken point edges from crushing than those cut by metering chamber sharp edges. Asked a duPont rep about that and he agreed.I have seen broken/crushed kernels after pulling bullets on compressed loads.
Just got done prepping some brass . Did a half assed test with the three powders , but for some reason went with the IMR 4895 instead , I think it was because that's what they recommended on the 222 site .
Anyway shot a couple factory rounds to foul the barrel and then shot a couple HMR's to let the barrel cool . Then shot a five round group with 24.5 gr of 4895 under 52 gr match burner . Got four in a three quarter inch string and one half inch , 3 o'clock off tthe center of that group .
Then shot a five shot group Scot 322 22.5 gr , 52 gr match burner thy clustered four in a little over .3" and one flier three quarter out of that group . The bench mark shot five in a shade under half inch .
It's almost midnight , got the brass prepped and primed , going to load some more in the morning and this time will give the 4198 a spin . But all with more groups . I realize a group on each load don't tell me much , but gives me an idea of which way to go .
It is a great caliber to shoot , doesn't recoil much at all and easy on powder .
Thanks Kenneth
A properly assembled rifle will shoot 20 to 30 shots or more in half as many minutes and bullet impact will not move away from point of aim as the barrel heats up.Anyway shot a couple factory rounds to foul the barrel and then shot a couple HMR's to let the barrel cool .
A properly assembled rifle will shoot 20 to 30 shots or more in half as many minutes and bullet impact will not move away from point of aim as the barrel heats up.
That's with a properly stress relieved barrel fit to a squared up receiver face to barrel tenon thread axis.
If you're like me, some of the new powder is about the only thing around the house that's hotter than it used to be.One thing to keep in mind is the current IMR 4198 etc are hotter than the past. The max loads (similar MV) are now lower in the books than in the past. Use a modern up to date manual.
Ask me how I know...
As I age I note salsa, jalapeno, red hot, BBQ, sauces, and whiskey are all getting hotter...If you're like me, some of the new powder is about the only thing around the house that's hotter than it used to be.jd
Best test is to seat a bullet on a case that full of powder, pull the bullet then see if any particles are broken apart. Too much powder if any are broken. Agree, drop tubes help.
In the heyday of 222 Rem in benchrest, a favorite load with 50 to 52 grain bullets was around 21 grains of IMR4198. That was also Sierra's load testing those caliber's weights for quality until the 22 PPC came out.