Myth busters Changing primers Affect on point of impact
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- Опубликовано: 7 сен 2024
- Reloading can be dangerous if you fail to follow safe procedures.
If you are using; extreme loads, hot loads, max loads, compressed loads or flattening primers DO NOT CONSIDER DOING THIS!
This test is based on a safe stable load that gave my firearm good results. Every firearm is different and you need to work out your own load development to find your rifles stable load.
Small primers tested:
Sellier and Bellot
Winchester
Federal
Federal premium
CCI 400
CCI BR4
My load was developed using the CCI 400. 223 Howa 1500 Stainless varmint, Sierra Super Roo Load - 55gr Soft Point Boat Tail. ADI AR2206H.
Target at 100m.
Please comment below with your experience.
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You brought up a very good point. Your initial load development had wiggle room. You were not maxed out. I know too many folks that want every bit of velocity. Velocity is not everything. Accuracy? YES, it is the most important thing you should chase. I have several rifles in 30-06. I have a few pet loads for my first one. None are maxed out on powder. These pet loads will always get me in the ball park of the others. Fine tune them (the actual powder charge), and with regular large rifle primers, you should be in business with just about anybody's primer. I will run a test batch (small one) if I must sub out for a different primer. Had to do it last year myself (I live in the US). Groups were good, but did adjust the scope slightly.
Closest to the middle load. The "best" load for me is the most stable. I'm probably going to start every hunt with test shots to make sure I'm on point.
Every time I've chronograph tested a benchrest primer versus a standard primer, my muzzle velocity variation (standard deviation, extreme spread) was lower using the benchrest primer. So for more consistent muzzle velocity, benchrest primer helps.
Proof that spending time on development pays off. Another informative vid👍
Yeah mate definitely! I'm actually going to redo my loads with an improved jump to the lands. Currently just running factory length, only because I wanted to make the basics video.
Mate, it's like you say, I load my .308, with normal primers, of any brand, with Magnum primers, and with large pistol magnum primers, and at hunting distance, there are no differences. Greetings from Patagonia Argentina
You just can't be on the limits, or you'll be at risk.
@@HuntShootOffroad ,Yes, always within normal pressures.
Primer performance varies a lot depending on (1) atmospheric temperature, and (2) powder manufacture. I can’t say I’m surprised how little variation you found.
I'm going to re run the tests over a chronograph. But because it want a hot load I wasn't surprised.
I would add that changing primers can result in higher peak pressures, so just be aware of that.
Yeah that's why I mentioned using middle of the range. It's about staying in the safe zone.
@@HuntShootOffroad Yep. Good advice.
Great video, thanks for sharing.
He obviously is not in the USA, because primers are not available here!
😂
@@HuntShootOffroad I did find one store that was only 6 hours away from me that was selling primers.
It was in Canada!
@@archangel20031 I think we get lucky in that must people here only by packs of 100, not boxes of 1000.
Great video. This would have been noce with the human factor removed (gun vise) and indoors to remove a couple variables
Yeah I just didn't have those options available to me.
Good test. Thanks
Glad you liked it!
That's a lot of rounds to run through consecutively, with no break for barrel cool down or swab, or at least you didn't mention it. I understand that the overall accuracy relative to bullseye is not the goal here. Still, from a testing procedural stand point, the truer, more conclusive results usually occur when that procedure is followed. Particularly when you have a huge variance in point of impact with different components.
Hey mate that's not a new gun by any stretch of the imagination. I edited the shots, that was like a 2 hour string, I think most people understand that.
@@HuntShootOffroad
Like I said, if you did allow for barrel cool down and swabbing in your test you didn't, but should have mentioned it. When offering tutorials, veteran instructors don't assume, they always state.
Barrel cool down and swab at break points between groups is not a procedure for barrel break in only. It is also important to accuracy when sighting in, and is crucially important to effective load development. Most people understand that too...mate.
@@bustabass9025 barrel cleaning can be controversial. There was no cleaning in between. I'll add it to the notes when I get a chance and make mention in the next video! Cheers for the feedback.
@@HuntShootOffroad
👍
Don't know if you still check your comments but that is a beautiful rifle, sir.
I just started learning how to hand load and I'm watching everything I can about pitfalls, correct procedures and myths of reloading. I'm not doing anything with rifle ammo yet but I'll get there soon enough.
Yeah mate, just haven't uploaded in a while due to circumstances.
Just make sure you develop a load for your rifle. Try not to change brands of primers and powders or really you have to start again with the load development. Don't worry about pushing your load to the max, just find a stable load in the middle that has buffer for variances.
Thanks man, I'll definitely take any advice I can. I had to get a couple of different brands of primers recently even though my manual consistently recommends cci but ill have to run what I can for now and (as you said) base my loadings on what works best with them.
I have two brothers who load for rifle so it's good to have a few people who can give me pointers. Again, I appreciate it man. And if you observe the day, happy easter.
@@nsob8897 no worries don't worry about what brand they recommend. Your probably using the Nosler book and they own CCI, that's why every recommend it. As long as you develop the load with what you've got you'll be right!
Good video! Wanted to say something positive with all the grumpy people on here . Lol
Cheers thanks mate!
Federal magnum primers yield higher velocities than CCI magnum primers in my .338 LM reloads . Both shoot accurately but the federal primer loads are about 30 FPS faster on average. That will change point of impact increasingly with more distance
What stock is that? I'm looking for a left hand thumb hole for my 1500SA
Cheers mate
Boyds featherweight left handed thumbhole. It's great!
Is that a heavy varmint barrel though?
@@aussiebeardsman1267 yes I had a gun smith install it and they opened up the stock for it to fit and bed the action. I got them to do some work to the trigger at the same time, otherwise I would have fitted the stock myself, but it was pretty cheap
🇦🇺😎👍Nice
Did he say GALVANIZED BEAR?
Lol, where was that?
un bon exemple pour les amorces qui doivent etres utilisees
English?
Another lefty. Left handed or eye sight like me? Or because you down under?
Right handed, left eye dominate lol.
@@HuntShootOffroad me too. I've learned to shoot right handed weapons. I don't have any problems with them. Though maybe everything curved the other way.
@@williamkowalchik572 I mostly just use pumps and levers.
@@HuntShootOffroad No monty carlo stocks. Nice thumb hole stock. I just pick up a Savage Axis II in .223 today. Shooting tomorrow. Ya😆😅🤣
Shoots great! Hand loading some up now. What cablier are you shoot in the bolt action?
after shooting all of those bullets I think I would have at least zeroed my scope
Nice video, however are we helping the reloading community grow by saying "Reloading is dangerous" in the first line of the description.
I've loaded 26 years and never had so much as a squib due to a strict adherence to safety procedures. I get your meaning, it CAN be dangerous, but normally when a user fails to engage safety. Thanks.
It just seems I can't please everyone, some people say you can't tell people you can do that. Then there are others like yourself. So I erred in the side of caution in the description.
I check all my stuff, yet to have my loads squib either.
I'll change the description slightly!
Thanks for the feedback!
@@HuntShootOffroad Every piece of reloading equipment, powder, dies. Everything has the same warning on it. I have seen some people's reloading. And never shot with them again.
What is the make of that shotgun? LOL
Let's just say it's Turkish 😉 I think the twist rate is too fast for the 55gr
Those flies made me stop watching.....
Flies? Fliers? I'm actually about to swap to 69gr, I tried messing with the seating depth still couldn't get the group to close up. Ice only used the gun for hunting so it's never bothered me.
Bad shot
Yeah maybe