I recently bought some Speer 8mm Hot-cores 170gr for my M70 featherweight 325wsm and noticed a lot of them were .321 to .322 according to my micrometer . Anyone else run into this ?
I even had to remove the expander ball in my sizer for some of them to get the case to hold the bullet firmly. That said they all made tiny groups on my targets.
I would have sent them to Speer with a letter telling them to get their s#%t together. Good heads up. You should post your experience on as many forums as you can and let Speer know you are doing so. That’ll fix their asses.
I think the big point is to make tiny groups, so sounds like they worked just fine. I have a couple boxes of them as loaded by Wisconsin Cartridge and I'm eager to give them a try in both my Medallion and BLR in .325. Both rifles have proven to be quite accurate with 180 & 200gr bullets.
I'm curious as to what type of velocity you're shooting them at. And also, how they hold up on deer-sized game. I certainly do not need a "premium" bullet for deer hunting with either of my .325s, but I'd just like to know if they hold together well, without over(?) expansion at closer ranges. Thanks for any insight you might have to share.
This is one of the Winchester 200gr XP3s that I used to take a very large Georgia boar. Held together well, while being stopped in the offside shield. Range was about 75 yards.
I'm loading them to 2800 fps pretty much a starting load. Didn't shoot anything with them yet mostly because I live where I can shoot only one deer a year. The last four hunting seasons I shot my bucks with a 45-70, 358, 308 and a muzzleloader.
Years ago I sold a customer a box of speer bullets for his 30-06 and he brought them back the next day not one in the box weight what was on the box I also notice that lots of bullet maker bullets are not consistent as to weight on box.
The early bore and groove diameters were different than what came with the 8x57JS we are used to today. I think the 8x57J used a bore diameter of .318 with a groove diameter of .320-.321. So your skinny bullets might just be a compromise.
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