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> Factory ammo consistency
Factory ammo consistency
@ 05:37 am (GMT) |
Scott StruifThe guys who made this video pulled bullets from 3 different lots of the same factory ammo. They found that the manufacturer used a different powder for each lot.https://youtu.be/pAc6rbYSD2U |
Replies
@ 05:52 pm (GMT) |
VinceRe: Factory ammo consistencyThat was an interesting watch Scott, Hornady like to promote the set up once and you are done thing with their factory ammo, it isn't true for reloading so this shouldn't be a surprise either, product consistency versus supply variables, I guess this comes down to commercial reality. If you want a consistent result with either factory or handloads, buy enough of everything in the same lot to see out the barrel life.Cheers Vince |
@ 07:30 pm (GMT) |
Mike DavisRe: Factory ammo consistencyummmmmhow to say this????? have a look on 6.5PRC forum..... or on NZHS about factory load issues/inconsistancies 1.4grns difference between pulled loads from same box,blown primers ,flattened primers I saw this first hand a year or 2 ago with .308 superpreformance and it put me right off EVER buying it..4 out of 40 rounds were super hot,popped primers stiff bolt lift etc etc that was a mates brand new rifle and first two boxes of ammunition bought with it.....he changed to 180grn winchester on my recomendation and has had zero issues since and killing deer just fine. to say the whole superpreformance thing, gave me a case of the screaming shits is putting it mildly. |
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@ 08:14 pm (GMT) |
Mike DavisRe: Factory ammo consistencysorry that should be 7mmPRC |
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@ 09:14 pm (GMT) |
VinceRe: Factory ammo consistencyHad a similar experience about 7 years ago Mike, I wasn't reloading at the time and had a new Ruger American in 7mm08. Did some research and decided that 139gr SST Superformance was the bees knees, luckily I bought 4 different boxes of ammo to test because the superformance shot terribly, over 3 inch groups at 100 and split 4 of the 15 cases I fired.The best performers were the 2 cheapest, PPU and American Whitetail which I used with no issues until I started reloading. Cheers Vince |
@ 07:03 am (GMT) |
Nathan FosterRe: Factory ammo consistencyHi Scott, I have come across this before within the brands including Hornady.Several years ago I had an opportunity to ask Hornady ballistician Dave Emary about this. He stated that if a better powder came along, Hornady would try to adopt it, provide the move was financially feasible etc. Loads might be changed to improve performance in varying temperatures (daily / seasonal etc) and to improve ES. This also included changing from commonly available ball powders of the day to ADI offerings. But of course, the issue in the video you shared is entirely different. Powder supply has been difficult this past few years. Besides shipping issues, ADI went through a plant upgrade followed more recently by an increase in demand from military agencies. Europe also underwent changes this past few years regarding powder transport regulations (pertains to Bofors / Reloader powder) so it has not been easy. The Superformance powders do seem to have been more of a challenge to implement. The approach on the face of it is rather simple - use a slow burning powder to achieve high speeds with minimal pressure while also utilizing a high BD so that more powder can be put into some of the smaller case designs. But it can be very difficult to implement this with so many variations in chambers depending on both the reamer design and state of the reamer used etc. Still, I believe they have come a long way with this in recent years. But in any case, as the video host suggests, it does pay to keep an eye out for differences, especially now as a result of supply issues. |
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@ 09:35 am (GMT) |
Scott StruifRe: Factory ammo consistencyHornady published a video a couple weeks ago touting the consistency of their factory ammo. They said stuff like, “Why neglect your family sitting at your reloading bench, when you can buy our loaded ammo?”https://youtu.be/oj5hlJSTrig |
@ 06:30 pm (GMT) |
Craig SanfordRe: Factory ammo consistencyI know I’m late to the party, but I have a story to share regarding Hornady Superformance. A couple years ago I picked up a couple boxes of the 130gr GMX load for .270 Winchester and was optimistic about it. That stout bullet at the advertised 3,190 fps would be good medicine in my neck of the woods! I took it to the range on a warm summer day and easily had it grouping 1/2 to 3/4 MOA in my Model 70. Great, I thought. So off to the store to buy all the rest they had, now I have a decent supply of ten full boxes. Fast forward a few weeks and I go to the range to confirm zero before a caribou hunt. Now the temperature is just below freezing. Groups are wild, like 5 to 6 MOA. What the heck, something must be wrong. I check the scope, mounts, action screws, everything seems correct. I go home and grab the other .270 (Marlin MR-7, dependably accurate rifle) and get 3 to 4 MOA with it. Switch to a leftover half box of Federal 140gr Accubonds and put all ten rounds inside an inch and a half. Not the guns, not the scopes, it’s the ammo! Temperature dropped about 50 degrees F and rendered my Superformance ammo useless. |
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