243 Precision Load Development, Range Test (Pt 2 of 2) 

No problem. Once you load that up, let me know how it shoots and what your shooting it out of.

Chad Harzbarger thanks for the comment.! I'm thinking very hard about building this new rifle in to the .243 Ackley Improved. Bullets are the same but case life is greatly extended and the speeds are much faster. I haven't decided 100% just yet, but I'm leaning that way.!

Chad Harzbarger For sure the 243 and 6 mm beats larger calibers like 308 and even 300 Win Mag at longer ranges. That’s why i shoot 243. Believe me i beat them all and they don’t really like it. For me this was the best choice for accuracy at long range. Regards from France!!! (Yep, we also have guns here).... 😎🇫🇷🎯🇫🇷😇

Vaughn Precision Your barrel life will be very short Dude! To much speed will kill it just the time to say it...

NorthMissFish thanks, I have a Shilen barrel on most all my guns

It's a tight chamber, this was a special order from Shilen. I hope to get a SB PMII scope one of these days. But the cost for me to build a bunch of rifles doesn't leave much cash to buy high dollar scopes unfortunately. I think when I build my 6.5x47 Lapua I'll top it with some nice glass since that will be my new PRS Rifle.

It's up to you but, in addition to measuring fired case heads for high pressure signs, I've always chronographed my hand loads (I almost never use factory ammo) and saved them in a dedicated notebook. It doesn't take much more time and the additional info is so helpful. Among the custom barrels I've had only one was a Shilen - for a 270 Weatherby Mag. chambered on a rebarreled Remington 700. It had the standard .378" Weatherby free bore for that caliber, but still shot .6 MOA at 200 yards with 150 grain Nosler Partitions. The IMR handout for IMR 7828 showed 73.5 grains gave 3,280 fps @ 54,100 cup. (I was careful to use Norma cases, not the much heavier, reformed Remington brass.) Actually, I went 1/2 grain more to 74.0 grains and averaged 3,263 fps. So having a chronograph told me everything was behaving pretty much as it should - as I moved up 1 grain at a time, every 5 shots. (That load exceeded the load in the Nosler manual; however, I knew from experience that the Nosler data was old and very conservative. Or maybe they used a Lilja barrel with less free bore. Whatever, to be safe, I called up Mike Harris at Nosler to discuss the data discrepancy before proceeding. Firing a number of groups for statistical validity, I also noticed that the groups with another bullet shrank when I switched from a Bushnell Elite 4-16x 50mm to a Leupold Mark IV 3.5 -10 x 40mm. When starting out, I've had cheap scopes give me mediocre groups. Trouble is, if parallax errors are mild, you won't notice a whole lot of difference in group size and may think it's the gun. I know that SWFA scopes are highly regarded, but it's always followed by the qualification "for the price." If they're selling a scope for $299, chances are that it cost less than $30 (or so) to make in the Orient. So what kind of quality control will you get for $30? I know binoculars quite well, and you can't get decent binoculars for less than $1,000 US (i.e., Zeiss Conquest). You don't have to spend that much on a scope, but I think scopes like a Leupold Vari X-III or a Bushnell Elite 4500 would be the least that I would accept if I was spending a lot of time and money on load development. In fact, it makes sense to spend more on the scope than on the gun. I put a Zeiss Diavari 3-12x56 mm on my Remington 700. After all, even mediocre barrels will shoot MOA these days, however, the same can't necessarily be said for the repeatability, accuracy and durability of cheap rifle scopes.

lexee50 I seat them to book specs most the time. I’ve used many powders to push them H-414, H-4831sc etc. they all are accurate it seems like with that bullet.

Did you try Varget?? If so, was it better or worse?? thx

lexee50 haven’t tried any Varget in this yet.

Tony Smith no, the bull barrel stays cool as long as I’m giving it a rest about every 10 shots.

I think I was using Hybrid-100V if I remember correctly

The factory 243 1in10 or 1 in 9 Barrel rate of twist will work best with 90 grain or lighter as a general guideline. The 100 grain loads are randomly marginally stabile.

ftb427 no, I haven’t

@@vaughnprecision thank you for your response. Being as I am in California we have to shoot lead free bullets. Have a nice day.

Frank Crisostomo the loads there were .010 off the lands shot the best. This is a common theme with the 243 ELD bullets

Vicki Lee that’s a Savage model 12-FV with a Shilen 1-8 twist ratchet rifle barrel

Nope, in south Olympia area

Jake Birkmaier usually you’ll need to get the bullets touching the lands. This often makes the length to long to feed in a mag. So they shoot them single shot

Vaughn Precision thanks for that, I thought that the magazine somehow decreased accuracy. You’re a great channel Who deserves more subs and views. I try to like all of your videos I watch.

Jake Birkmaier thank you..! Appreciate all the views and likes. Maybe someday we’ll hit 10,000 subs.! That’s my goal..!

It’s got both