Don't use soft points in autoloaders?

Sasquatch

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I've been trying to work up some 300 BLK loads and have not had success yet (haven't been able to get factory ammo accuracy). Because they were cheap at the Gander goob sale, I bought some Hornaday SP Interlock. My initial loads with them had bad accuracy, but so has most of my other stuff. Reading the article below, I'm wonder if they're appropriate for autoloaders?

http://www.massreloading.com/twobullets.html
 
What; make and twist rate is the barrel, powder are you using?
I'm loading Hornady 125 SST in mine and am pleased. My son and I were ringing a 10" plate in VERY low light this eve with a red dot at 175 yards.
 
What; make and twist rate is the barrel, powder are you using?
I'm loading Hornady 125 SST in mine and am pleased. My son and I were ringing a 10" plate in VERY low light this eve with a red dot at 175 yards.

I'm still working up loads, but I was using a 165 grain SST, 1/8 twist, 10" pistol, H110 between 14.3 and 15.3 grains. What is your recipe?

My question though was if SP (soft/spire) was appropriate as the the tips can get dented in an autoloader as the article shows. The SST has the plastic tip which is unlikely to deform unlike the SP.
 
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I've been trying to work up some 300 BLK loads and have not had success yet (haven't been able to get factory ammo accuracy). Because they were cheap at the Gander goob sale, I bought some Hornaday SP Interlock. My initial loads with them had bad accuracy, but so has most of my other stuff. Reading the article below, I'm wonder if they're appropriate for autoloaders?

http://www.massreloading.com/twobullets.html

What kind of accuracy is bad accuracy? Are we talking a 3' spread at 50 yards, or a inch or 2-3 at 100 yards.

But yea a soft point can and does deforms while chambering. You are ramming a soft lead into the feed ramps, then the nose sorta bounces off the top of the chamber. Sometimes it affects things, sometime it doesn't. I know in my 6.8 if I am using a soft point iot gets a little marred up but doesn't overly affect accuracy.

SO really soft points are not a good idea but people make them work
 
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I'm still working up loads, but I was using a 165 grain SST, 1/8 twist, 10" pistol, H110 between 14.3 and 15.3 grains. What is your recipe?
My question though was if SP (soft/spire) was appropriate as the the tips can get dented in an autoloader as the article shows. The SST has the plastic tip which is unlikely to deform unlike the SP.
I haven't tried soft tips, it also depends on your feed ramps, magazine lips and COAL. You may be able to cut/shave the lead close to flush with the copper to minimize any deformities.
My 300BLK (avatar) is a 10"SBR, the twist is either 7 or 8, I don't recall. I'm loading H110 17-17.3g
Check powder/bullet mfg loading data yearly! Alliant changed their 2400 recipe (very similar to H110), I was using an older manual and was splitting 44 mag brass on first firing. The older manual had me 1.5g over max, I'm glad it didn't ruin my Anaconda, and wasn't a S&W!
Here's Hodgdon's 125/H110 loading info @ a year ago & today, they dropped the min 1.0g & went up 0.7g at max;
300BLK 125g load.JPG 2017-09 300BLK Hodgdon 125g Loads.JPG
 
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I use Winchester 64gr Power Points in my AR for Deer, although I might be switching to something else just for the sake of trying something else. Sometimes the exposed soft point gets dinged on an edge either being entered or extracted but nothing that has stopped the bullets from working well on deer
 
I use Winchester 64gr Power Points in my AR for Deer, although I might be switching to something else just for the sake of trying something else. Sometimes the exposed soft point gets dinged on an edge either being entered or extracted but nothing that has stopped the bullets from working well on deer
I've had no issues with spire points in my 5.56/223's, with the exception of my KAC that came with M4 feed ramps in the upper, but not on the barrel extension.
 
I've had no issues with spire points in my 5.56/223's, with the exception of my KAC that came with M4 feed ramps in the upper, but not on the barrel extension.

Yikes, was that a mistake by KAC?
 
Yikes, was that a mistake by KAC?
Yes, it was 18+ years ago, they fixed it right up & paid shipping both ways. If I wasn't pleased with it I would have replaced it with something else a long time ago. Stuff happens, what matters is how a company/person deals with it after the fact.
 
I use Winchester 64gr Power Points in my AR for Deer, although I might be switching to something else just for the sake of trying something else. Sometimes the exposed soft point gets dinged on an edge either being entered or extracted but nothing that has stopped the bullets from working well on deer
I use Federal 62 grain Fusion bullets in my 223 and 22 Nosler loads. They are a protected point bullet with no exposed lead. Fusions are also bonded and hold their weight well. They're not usually available as a component, but Rocky Mountain Reloading usually has them in bulk.
 
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I have used Hornady 55SP bullets in my .223 Wylde AR, and they have been some of the most accurate bullets I have shot (at 100 yards).

I tried some SP bullets in my old Ruger Mini 30 (7.62x39) that were getting cut/dented during chambering due to the design of the feed ramp. I could get around the issue by seating shorter, but could never get an accurate load with them.
 
What a coincidence, I just started loading 220gr Interlocks myself for 300blk. I'm using a RA bolt action though. First thing I noticed was that I'm going to have to start seating them a little deeper, when I seat so the mouth is in the cannelure (or however it's spelled) they don't feed well even in a bolt action.

Another thing I noticed was that the 7.0gr of Lilgun that brought my coated lead 220gr bullets to 1050fps barely brings these to 700fps. I knew brass jacketed generates more friction but dang, I think the almost straight walled shape of these engage a lot more rifling than your typical spitzer FMJ.
 
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