Video

Great series. I was kind of hoping you’d throat the 7 Rem mag to unlock more of its potential. I just started with the cartridge 2 months ago. So I had no place to start other than published data. I landed on Retumbo pushing 180 Berger Hybrids at 3045. I never expected that kind of velocity especially with 1/2” groups. Haven’t stretched out past 1079 yards. Trying for a mile. Really tough to find a place to get it done where I live. I’ll be looking more into Gordon’s software as well. Again thanks for what you’re doing here.

You were a little off base on the Bell curve. If 66% of the time you shoot within half an inch then 34% of the time you shoot bigger than half an inch. Not 17 and 17. Less than a half an inches included in the half inch. But we get your drift. One sigma should be 66 two sigma is 95, etc. 43:50

As always, Tim, the only thing I regret about my time spent watching your videos is that I'm doing it at work, between customers - With no access to my reloading kit. I'd not even eyeballed N150 before this, and now I want to pull up my 280AI load data and run 150 through Gordon's to see what it says for what I've put in it. Thank you for this, and I look forward to the rest!

Get you a Garmin chronograph and don't look back. The lab radar that I have used worked horrible for me

@littlecrowgunworks Thanks Tim for the next installment. As a 280 AI owner, i was very much looking forward to this one. I was hoping youd find a N555 load that shot well as ive just picked up a pound of that after running through GRT and liking the numbers. Maybe my 1:9 proof barrel will shoot the 150 gr CX well. I plan to set the jump at .050 as Hornady recommends. Hope i can get a load that shoots from my barrel, but i have 4350 as well and i know 4831 SSC shoots the 162 gr ELDX super small. I was hoping for more velocity than 4831, but dropping to the 150 gr CX should give me better blood trails. Thanks again and cant wait to see all the guns stretched out!

I might still be on my way up mount stupid, but at least this series is carrying me over some of the things that I have not hit yet so I can avoid them. Thanks, Tim.

I was getting ready to pull the trigger on a 7 PRC and seeing this video was enough to give me pause. There is a lot of hype on the 7 PRC and very hard to separate fact from fiction. As an intro, this video contained some great "no BS" information. I am looking forward to following your series. Thank you!

4831 sc hammers in just about every 280 ai I've ever messed with

I will probably never get the chance to hunt elk but the information you're putting out in these videos is great thanks im in the south and only get to hunt whitetails and hogs

Thank you Tim. Appreciate all your work on this series.

This was a great video, Tim. I wish I would not have bought my Bergara B14 squared crest in 7 PRC and went with your rifle instead. That’s pretty much the way I would have ordered it.

I just found this channel. What a great video! I might have missed it, but why was the H1000 in red with*? Looking forward to seeing your results with 28 Nosler hopefully with 160cx. I used that combo last hunting season and it worked awesome.

I have a Kimber 280AI. 24inch barrel. I run the 168 Nosler long range at 3000 fps. with RL26. but im going to switch to H4831sc

Nothing but love for this series. So good.

Lots of great information again, especially your explanation as to why you use round robin in your testing. Question: how much time do you allow between each shot? I live in Florida and things can get hot really fast. Thanks, as always.

Another great video Tim. Thanks for doing this

Federal terminal ascent is the best bullet made period

The professor is in the house!! Another great video!! Just for curiosity, Tim, have you experimented with any of the 6.5 cartridges? Im debating between the 6.5 cm or the 6.5 prc. I say this as i recently lost my 7 mag to a fire, and I am looking at 1 gun that would work for quite a while.

I'm sticking with 6.5mm's so I don't end up in this 7mm category of polarized gun owners....Hold on there's those people in the 6.5mm community.

Thanks again for a great informative video. As a .280AI shooter/hunter/loader, I’m absorbing info that I want to apply in my loading. Only difference is that I’ve been using slower powders with very good results. VV560 has been good but RL23 and L26 is working great with the 160gr bullets as well as the 143 Hammer Hunte. Thanks again Tim!

I shoot round robin and reverse round robin every time I shoot, whether it's working on OCW for one rifle, one bullet, one powder, or testing multiple factory ammo in a rifle or even when I get to a step where I've settled on a bullet but comparing different powders. Also, in one of my 7PRCs the LRT is the best powder so far in it with 170 BVLDs.

Tim, not sure your order of shooting but I have personally found, as have others, that the CX bullet likes to be shot from a clean barrel. I did an 8 shot string in .3 increments and the group size was about 1.25”. Picked a load to try and shot it after my 143 ELD-X factory from my 6.5 PRC and the group size was 1.75”. Next time out w the same CX load but again a clean barrel and it went into .9”. Found the same thing shooting copper out of my 6.5 CM when it was in the middle of other lead based bullets. Once clean, it shot great. As the first load out of the clean barrel. Another excellent class.

Thank you for this awesome series of videos i have been learning a ton of stuff. I had to buy a cheap laptop just so i could get Gordons reloading tool (no IOS as with everything cool) and it was worth it. Cant wait for the next video.

👨‍🎓 Tim, Your The Only One On U-Tube That I've Seen That Employees The Same Method As Me - Of Taking The "Bias" Out Of Your Latter Test - By Taking One Shot At Each Powder Charge and Moving Up Or Down The Latter, Before Circling Back! Hats Off To You Sir! 🤠

Love my 280ai I’m shooting 175ELD-X @ 2850 24”barrel with 7828SSC Im on the hot side I think I need to back off but it’s killed four elk so far.

I think i'm going to have to incorporate round robin in load testing makes sense. Tks again

Great viewing once again!

Been waiting for this one.. thank you Tim

Ive been enjoying your videos. How do mitigate bipod hop the way you do? Ive got a 308 with an M24 in a T4A and get bipod hop if I dont load the bipod into a 2x4 screwed into my shooting platform. Ive got a Harris 6-9. I use it at its shortest length. Should I lengthen the legs?

Hornady cx seem to be hard to get good groups.

Thank you for another great video. I'm looking forward to seeing the longer range performance of the test loads.

The 130.grain terminal ascent 6.5 PRC are running 3100 fps out of my 24 inch Bergara. 100 fps faster than advertised.

Also have not even seen a mention of n160 through the video line up.

Just wondering about n160. I shot it with the 139 CX. and it shot very good unfortunately my chronograph crapped out on me so vel data I am not sure but I think like four out of five groups were like pretty much well under one moa. And you shot up to that burn rate. Just curious.

I am happy with the handloads I've re-verified in my 280AI with a 24" Bartlein 5 groove #3 contour - 139 Barnes LRX over Superformance at 3300fps. I'll use it out to 400 or 450 yards. Still haven't made time to do any further testing in my Brux barreled 280AI. I plan to take a 2x fired Norma case, neck it down to accept a .277 bullet, seat a 150 ABLR to make a dummy round and send it off to JGS for a reamer - 270 O'Connor. I spoke with a builder who is very familiar with it and he stated to me he averages 3200fps with a 130 mono but doesn't like to run cartridges hard and gets long brass life. I tend to run them as hot as they will go accurately and just buy more brass. Maybe I should rethink what I'm thinking.

I bought all of my Stillers when Stiller was still in business. TAC300s and Predators. They work just as well as any other in my experience. If I recall correctly, Horizon Firearms now owns it. I have two 280AI builds and just received a stainless Rem 700 25-06 already in a McMillan stock that I'm converting to a 280AI.

First

Still loving this series. Still learning on every video so far.

This series made me a subscriber. The way you’re explaining all this is just great.

This video was awesome! Lots of stuff I already live by BUT so much of the detail explained was great. I’m by no means an experienced long range shooter but I’m a very experienced hunter that has started looking to extend my reach to 500. 600 would be max I would ever take also but I’m not there yet. Also the blank look at certain points is perfect haha.

Ya mag length does suck on the tikkas but still love them lol. Always been able to make them shoot with multiple different loads. Very hard to beat for a cheaper factory option.

Any more videos coming out on tripod soon I am in the market. I can't don't many reviews on them. Thanks

BTW, love my trimmer.

Thanks for this greatly needed information. You've saved a lot of time and money for many of us by publishing this. One question: I'm a 270 win reloader. I realize from a comment you made that you aren't loading 270 win. If you were, would you add any additional powders to your short list?

Congradulations on bringing target movement into long range hunting, as an ex sniper that has fired thousands of 300 win mag rounds I will never shoot at a moving big game animal period. I currently shoot a 28 Nosler and personally believe its the best big game cartridge up to brown bear with the Nosler 175gr ABLR. The comments of a fast cartridge being a barrel burner is so irrelevant to a hunting rifle that you only verify the zero before each hunt lets me separate the BS commenters from true knowledgeable shooters. Great presentation and I appreciate the cost and effort to bring truth to the shooting public, so thank you.

Will this work with the other chair that BOG make to convert it over to a death grip

X-Caliber carbon fiber prefit or proof prefit carbon fiber? Which is better?

So what's the deal with n565. I bought a pound. Thinking it was 165 then when I got home. Realized it's not what I wanted. Now I can't find much about it. Can anyone help maybe ??