222 reloads

[jsuelzer]

I'm having an issue with case capacity, or so I think.

I just started reloading for my grandfathers old remington 722. I bought lapua brass, rem 7-1/2, imr 4895, and 52g smk. My Sierra manual lists a max load of imr4895 at 24.6g (which is also the accuracy load). Being my first time with this gun, and new brass, I loaded 22.1g. All shot well, checked primers and they showed no signs of flattening, or leaking. This time around with the brass once-fired I was going to do some load development. Starting at 22.6g and working up to 24.6g. I noticed at 22.6g the powder was coming up to the shoulder-neck junction. There doesn't seem room to fit 2 more grains of powder in the case. For giggles I tried throwing 24.6g and it was spilling out over the case. I've reloaded new 6.8(ssa) and 6.5 Grendel (aa) brass with no issues with case capacity. I have checked and rechecked the scale, I'm lost.

 

[29aholic]

IMR 4895 is a bulky powder and Lapua brass may be thicker in the head area taking up more space than say Remington brass. It is not unusual to have a "compressed" load with 222. Check for signs of pressure on the next step up. I use H322 for 222

 

[wilecoyote]

I'm having an issue with case capacity, or so I think.

I just started reloading for my grandfathers old remington 722. I bought lapua brass, rem 7-1/2, imr 4895, and 52g smk. My Sierra manual lists a max load of imr4895 at 24.6g (which is also the accuracy load). Being my first time with this gun, and new brass, I loaded 22.1g. All shot well, checked primers and they showed no signs of flattening, or leaking. This time around with the brass once-fired I was going to do some load development. Starting at 22.6g and working up to 24.6g. I noticed at 22.6g the powder was coming up to the shoulder-neck junction. There doesn't seem room to fit 2 more grains of powder in the case. For giggles I tried throwing 24.6g and it was spilling out over the case. I've reloaded new 6.8(ssa) and 6.5 Grendel (aa) brass with no issues with case capacity. I have checked and rechecked the scale, I'm lost.

maybe using a thin, longer, pipe between the brass and the powder funnel could help you to have a better settlement of the powder throwed in the case, gaining some useful room, as once done by benchresters...

 

[Juma]

Have a look at 748. Super powder for the triple deuce.

 

[LoanHarvey]

The load for that gun just very well may be 22.2gr if H322! (50gr zmax)

 

[FN in MT]

Lapua brass is definitely thicker in the head and possibly body...I have found the same issue. I gave up on my old IMR 4198 load and went to H-322 ball powder. WW 748 will work fine as well.

 

[Victor N TN]

Some of the benchrest shooters I used to shoot against shot the "Triple Deuce". They loaded H-322 and 52 grain bullets.

 

[Greg Langelius *]

My load is 52SMK and 24.5gr of BL C-2. Been a while, though...

Greg