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Sherman Wildcat Reloading Data is Here!!!
- Thread starter Idaho Trecker
- Start date
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Idaho Tracker, are you the man who put the sherman load spreadsheet together? Thanks for that. I'm about to build a 300 Mega F-Classer and wanted to know if you have any loads for a 208 grainish bullet. Also, I have some load data to share for the 7ss and 6.5ss. Thanks for your time.
I built a 30 Sherman Mag to shoot in ELR Light Class.I shot a 300 PRC in 2022. I never found any data so I had to work upallI have.Im glad tofinally see what others have.
lancetkenyon
Well-Known Member
I have a TON of info on the new 6.5PRC/SI you could add.
New "Test" rifle REVEALED: 6.5 PRC SI (Sherman Imp)
I am building a new rifle to test a new case design. I will preface it by saying this is not my design. But I was asked to be the beta tester for it. I cannot say much about it yet but will be in the future once testing begins. I am currently waiting on the reamer to be completed, so my...
www.longrangeonly.com
Yes please!! Building one for the father in law and buying a reamer soon may even pull the barrel of my pre 74 and and have my smith spin up a barrel for it!
lancetkenyon
Well-Known Member
You won't be sorry. I have been VERY impressed with the cartridge.
elkaholic
Well-Known Member
With the B chamber in the SS vs the SI, I think its a dead heat if you compared 10 rifles.
elkaholic
Well-Known Member
Comes down to Ford vs Chevy
SS has head stamped brass and runs better in a short action, but........
Okay, so that's a no on the 300 Mega load data. That's okay, brass will be here this week, dies next week, barrel and reamer week after that. I recently cut my 7ss Krieger barrel down to 18" from 24" to cut weight and make it easier to swing around in a small texas deer blind. Weight reduction for pack gun in Colorado. So, I was running 168 HVLD's with N560 in the 24" configuration. I was hovering around 3,000 fps comfortably. The thinner jacket, supposedly, on the hunting version of the bergers is SO dang explosive, for lack of a better word. It's not blowing up on the surface as many say (guess) it does. Mine are, at 100 yards, blowing up at about 2-3" past impact surface, neck, between shoulder and spine and spine, which is what I had hoped. The shots on spine are creating a channel through the spine.
I'm now, in the 18" configuration, running 180 Hybrids with IMR 7828SSC. I got it up to 2800 with heavy bolt at the top. I'm now backed off to 2700fps with 60.2 gr of the same. .320" 4-shot group at 100yds.
Ran out of room in cartridge with the N560, because bullets are seated into powder column for mag clearance. Short action Hawkins precision flush mag for wsm.
180 Hybrid target bullets supposedly have thicker jackets. Will do some testing on non-living objects before live testing to see how they expand.
180 HVLD's are available but like to be seated long, is reason I'm trying the hybrids (they don't mind a little, a lot in this case, jump). Will send pics when I can.
I'm now, in the 18" configuration, running 180 Hybrids with IMR 7828SSC. I got it up to 2800 with heavy bolt at the top. I'm now backed off to 2700fps with 60.2 gr of the same. .320" 4-shot group at 100yds.
Ran out of room in cartridge with the N560, because bullets are seated into powder column for mag clearance. Short action Hawkins precision flush mag for wsm.
180 Hybrid target bullets supposedly have thicker jackets. Will do some testing on non-living objects before live testing to see how they expand.
180 HVLD's are available but like to be seated long, is reason I'm trying the hybrids (they don't mind a little, a lot in this case, jump). Will send pics when I can.
This pic was the 7ss, 18" barrel (Krieger 4-groove), vais brake, 60.2 g imr7828ssc, 180 hybrid, from a backpack "rest".
I built a 7 Max on a long action with the same performance using H1000. SO easy to load for.
My son is running the 6.5ss, 156 eol, H1000, sub 1/4" groups, suppressed.
His is a rechamber from 6.5 prc. He was have extraction issues. We scoped his chamber, it had a deep gouge in the web area of chamber. Came from factory this way. Carbon something or another. I removed tenon, rethreaded and chambered to the 6.5ss (was able to clean chamber walls with 6.5ss reamer).
I built a 7 Max on a long action with the same performance using H1000. SO easy to load for.
My son is running the 6.5ss, 156 eol, H1000, sub 1/4" groups, suppressed.
His is a rechamber from 6.5 prc. He was have extraction issues. We scoped his chamber, it had a deep gouge in the web area of chamber. Came from factory this way. Carbon something or another. I removed tenon, rethreaded and chambered to the 6.5ss (was able to clean chamber walls with 6.5ss reamer).
Attachments
Here are some random 7Max ladder test pics. The pic w/o my scribble is where I finally got it. All with 180 Scenars and cci 250's. H1000 is the shtuff. Ramshot Magnum is great too. I understand the Reloader powders are great, but down here where I live the temp swings, usually in the hots, prove otherwise.
