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338 Allen Xpress, RL33 load development

 
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  #57  
Old 10-03-2013, 11:25 PM
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Re: 338 Allen Xpress, RL33 load development

Do you think using this powder a 300Ax with a 27" barrel will be able to push a 230gr hybrid to 3200-3250fps?
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  #58  
Old 10-04-2013, 08:59 AM
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Re: 338 Allen Xpress, RL33 load development

Quote:
Originally Posted by TXAoudadKlr View Post
Do you think using this powder a 300Ax with a 27" barrel will be able to push a 230gr hybrid to 3200-3250fps?
It will get close to that with Retumbo. I would think 3250 would be pretty easy with RL33. Have not tested it yet but its on the TO DO list. This time of year just not much time for my personal TO DO list. Customer TO DO list is much more important.

We will be doing a RL33 work up this weekend for my brothers 7.82 Warbird which is extremely similar to my 300 AX so that will tell me a lot about what my 300 AX will do with that powder. He wants to use 180 gr bullets though because of the Sakos relatively slow rifling twist.
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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  #59  
Old 10-04-2013, 10:04 AM
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Re: 338 Allen Xpress, RL33 load development

Quote:
Originally Posted by Fiftydriver View Post
.....
We will be doing a RL33 work up this weekend for my brothers 7.82 Warbird which is extremely similar to my 300...,,,He wants to use 180 gr bullets though because of the Sakos relatively slow rifling twist.

UGH! That is a killer Kirby. I believe that cartridge would really shine with a heavy weight.... that's a pretty nasty handicap. I'm still looking forward to your results though, keep up the good work.



t
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  #60  
Old 10-04-2013, 10:21 AM
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Re: 338 Allen Xpress, RL33 load development

Old Lazzeroni got hung up on velocity more then anything but to him, 600 yards is very long range so he can get away with it. His chamberings would be much better served with faster twist barrels shooting the heavy bullets.

Comparing the two, the 7.82 Warbird and my 300 AX, they are for the most part identical other then brass quality and price. The 300 AX has the advantage there hands down in every way, price, quality and strength.

There have been many discussions about Lazzeroni brass and pretty much the only one out there saying its GREAT brass is John. Anyone that has used it knows its the weak link in the system. Older brass was TERRIBLE. Even dangerous if you tried to load it to his advertised velocity levels with his own listed loads. Newer brass is better but still not great.

For example, he lists his Warbird at 3550 fps with a 180 gr bullet using H-1000. Well, in my brothers rifle, using Lazzeroni load data, with the old brass he would decap his primers on each shot at 3400 fps. A full 150 fps off RECOMMENDED and ADVERTISED velocity levels.

With the newer brass, primer pockets start to let loose at 3500 fps so that's the most my brother has been able to get out of his rifle with the 180s. He is hoping to at least be able to FINALLY get advertised velocities and maybe slightly more. I told him I am not to confident that will happen and if he does not get it, we may rebarrel his rifle to my 300 AX for the dramatically better brass at lower cost.

Will let you guys know what we find out with the Warbird and RL33.
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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  #61  
Old 10-04-2013, 10:32 AM
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Re: 338 Allen Xpress, RL33 load development

He's your brother and he hasn't pinched you for some free gunsmithing? He's nicer than my friends and family. There is no call for dealing with crappy brass. That is the down side to trying to push things with .378 Weatherby based wildcats. At 3+ bucks a pop and maybe 3 warm reloads it gets old quick.
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  #62  
Old 10-04-2013, 10:41 AM
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Re: 338 Allen Xpress, RL33 load development

Kirby,

I have read a lot of disappointing reports on the large mag brass. I've always been curious as to why it seems to be a LOT weaker than the short mag brass, doesn't make sense to me. Maybe i'm the lucky one & ended up with good short mag brass? Almost everything I read says the same, short mag=good: large mag=bad.... what would be different?

If I recall correctly, Hornady is making the new brass. That should be a HUGE step forward in quality. I have both & can say, I like the new brass better. I'm pushing the Patriot harder than I probably should & am on 4+ reloads on my test cases, I can live with that.


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  #63  
Old 10-04-2013, 10:54 AM
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Re: 338 Allen Xpress, RL33 load development

Quote:
Originally Posted by IdahoCTD View Post
He's your brother and he hasn't pinched you for some free gunsmithing? He's nicer than my friends and family. There is no call for dealing with crappy brass. That is the down side to trying to push things with .378 Weatherby based wildcats. At 3+ bucks a pop and maybe 3 warm reloads it gets old quick.
What I did not mention is that we are also fine tuning the drop chart on his new APS XHS 338 Allen Magnum as well this weekend.........

On the Wby brass, that's why my LITTLE Allen Xpress wildcats based on the Lapua case can match or even exceed the same caliber round on the big Wby case and do so with around 10 grains less powder. Strong case design is a wonderful thing.

Last I checked, Wby brand 378 Wby brass was +$4 each. Norma brand 378 Wby brass was $5 each!!! Now 338 Lapua brass IS NOT cheap but at around $2.75 each, its a steal considering how strong it is. Warbird brass is running $3.75 each.....
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Kirby Allen(50)

Allen Precision Shooting
Home of the Allen Magnum, Allen Xpress and Allen Tactical Wildcats and the Painkiller Muzzle brakes.

Farther, Faster and Flatter then ever before.

Web Page: www.apsrifles.com

allenmagnum@gmail.com
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