225 gr ELD .300 win mag load data

Another thing, my chamber is relatively tight. A fired case in my chamber measures 2.2710 from case head to Datum. SAAMI is 2.270 for a new case.

I have the Redding competition shell holder set #6 helps control shoulder setback. For a bigger chamber you use the +0.010 , to avoid too much sizing. The smallest one, or the one closest to a standard shell holder is .002. that is the one I use setting my shoulder back only 0.0015. a standard shell holder would only set me back .0055 - .006.

My old .300 wm would be setback nearly 0.0125 with a standard shell holder!!! So this chamber Datum is almost .010 shorter than my old.300wm.
 
More excellent information! Thank you!

I went to Cabela's last night and picked up some of the 225 ELD-Match bullets and then played around with them and my Hornady OAL gauge in my factory Remington XCR .300 WM hunting rifle. If I were to load those bullets out to .020" off the lands for that rifle, they would be WAY too long for my XLR magazine. Now, granted, I bought that rifle used, and I don't know exactly how many rounds have gone through it, but I do know that it's not terribly worn. Assuming that it was cut with a SAAMI spec reamer at the factory, I would say that I would need a bit less freebore than a SAAMI spec reamer.

I'm waiting for my Norma brass to show up from Brownells right now, but I think when they get here, I'll load one out to the OAL I'm looking for and send it in to PT&G and have them make me a reamer just for that round. This is as per the rep I talked to at PT&G the other day. He said that this was the best way to get the reamer exactly right, but I was really hoping to just buy a reamer off-the-shelf because I'm ready to get this barrel chambered...
 
I'll load one out to the OAL I'm looking for and send it in to PT&G and have them make me a reamer just for that round. This is as per the rep I talked to at PT&G the other day. He said that this was the best way to get the reamer exactly right, but I was really hoping to just buy a reamer off-the-shelf because I'm ready to get this barrel chambered...
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This is the best way to do it. It would also be wise for you to buy a die blank and ream it with the same reamer you chambered your gun with. Then you wouldn't have to screw around trying to make a commercial die work.

I have to use special shell holders and collet dies to accomplish what you could with just a nice custom die.

2nd of all, Don't throat the chamber too short. Part of why I get so much extra velocity and with so much Powder is because I am seat the bullet long, giving me extra space in the case. Basically it is as if I'm shooting some kind of .300 win mag Ackley improved :D.

What action are you building on?
Are you using a muzzle brake?
I can't use one, NRA F-CLASS doesn't allow muzzle brakes. But I am damn sure using a limb saver! Off a bench it is no problem at all, but prone, after about 50 rounds without a limb saver, I get some fatigue .
 
Yes, I agree with reaming a die blank. I plan on using the "cut off" from the end of my barrel for that. My barrel blank is 31" long, and I'll be using finished barrel length of 28"; same as yours.

I do want to load them out long; as long as possible, really. I also want to have a decent amount of jump (.020-.030"; whatever yields the best results). Both of these criteria are so that I can run a pretty decent powder charge for the velocity I want, but without creating excessive pressure in the brass. You know the drill on that...

I'm using a Stiller TAC300 action, with a Bartlein barrel, 28" finished length with a Heavy Palma profile, and an APA Fat Bastard muzzle break (1st Gen). I don't intend to use the rifle in any kind of competition, so I'm not too worried about the brake. It will definitely make if less fatiguing to fire for long periods. I'll also be using a Timney Calvin Elite trigger and an XLR Carbon chassis with a Harris bipod. I will be doing all machine work myself.
 
I'm using a Stiller TAC300 action, with a Bartlein barrel, 28" finished length with a Heavy Palma profile, and an APA Fat Bastard muzzle break (1st Gen). I don't intend to use the rifle in any kind of competition, so I'm not too worried about the brake. It will definitely make if less fatiguing to fire for long periods. I'll also be using a Timney Calvin Elite trigger and an XLR Carbon chassis with a Harris bipod. I will be doing all machine work myself.
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That's a pretty fancy rig. Unfortunately since I have 2 young kids, mortgage + 80 acres, cars, and a shop I just built to pay for, I have cut costs when I can.

Plus I shoot about 300-500 rounds a week and compete so ammo costs are high lol. The Shilen barrel and Savage 110 barrel nut method is nice so that when I shoot this barrel out over the course of 2 seasons, I can quickly swap it and Shilen will match your old chamber best they can .

I'm also about to start on a .338-06 built off a 98 Mauser action for a moose hunt this fall.
 
Yeah, I hear ya on all that! Having all the responsibilities definitely takes its toll on the old checking account! I still have one kiddo at home, but the other two are grown, married and on their own, so that has lightened the load a bit over the past few years.

Luckily for me, compared to all the hobbies I've given up over the years (racing motocross, snowmobiling, flying, owning and racing a late-model stock car, yada, yada, yada...), shooting and building rifles is CHEAP...! LOL!

The Savage barrel nut setup certainly makes barrel changes almost trivial. I have a couple of Savage rifles, but have never modified them in any way, so I don't have much firsthand experience with that.
 
Alberta Canada. My dad, brother, and I. We can shoot 2 cows and 1 bull between the three of us. My Dad is 57 while my brother and I are 31 and 34 yrs old so Dad gets the bull tag this time since my brother and I will go again eventually.

Last year was black bear....Year before that was antelope back where I'm from originally (Nebraska but live in Mississippi now)

If you don't mind, how much was the Bartlein barrel? The Shilen Select Match was $475
 
The 31" Heavy Palma profile barrel blank was $360, I believe.

My wife and I went to Alberta (Lake Louise, Banff, Canmore) last year for our anniversary. It's a beautiful place! Banff is about 6 hours from where we live (Spokane, WA).
 
Akrivis:

Here is my last 4 shot group testing my load and fouling the bore for my competition Saturday. This is 4 shots at 200 yards, 2905 fps. 8mph wind r-l

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I didn't measure it but it's about .7" center to center or 0.35 MOA, and that was shots 2,3,4,5 from a clean bore. Once it settles in I can get down below 0.5" center to center at 200.
 
Wow...! Nice work! Is that with the 225 gr Hornadys and the 79 gr of H1000 that you described in your earlier post?

I'll be ecstatic if my rifle shoots that well...!
 
I just finished a match with this load in virgin brass, untrimmed. It was off a bipod and rear bag. 600 yards. I shot a 579-x19. Out of a possible 600.

A few of the dropped points were definitely my fault (a dreaded 7 on the first shot for points :mad:)

But now fireformed , and using my other fireformed brass (this was a Non-NRA sanctioned event so my score didn't count), I expect that to tighten up a bit.

It was 4-8 mph R-L wind . So the load I discussed initially looks great. Oh and while shooting against 6.5's, .308's, and 284's, the guys in the pits knew when I was shooting due to the huge dirt pile flying when that big bullet hit !:D:D:D
 
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