Hard to Find Data

[vanbuzen9]

Hey guys,

I am having trouble finding loading data for 15" tc encores in 250 savage and 260 remington.  If anywhone has any data, or knows where to find some please let me know.  I have search all over the internet, and my hornady loading manual has no 15" pistol data for these cartridges.  Any help would be greatly appreciated.

thanks,
vanbuzen9

[Reed1911]

What exactly do you need? Velocity info? If you are just needing load data, the standard data will be just fine.

[vanbuzen9]

Reed,

I have been cross-referencing rounds such as the 7mm-08 that I have both pistol and rifle data for, and the pistol data uses less powder and obviously has less velocity.  I am just trying to find velocities that I can see in a 15" barrel.

If I could just get the velocity numbers for a few differenct popular bullet weights, that would be real helpful.

thanks,
vanbuzen9

[skarke]

It'll cost you $100 bucks, but "RCBS.load" software can get you there.  Thought about borrowing a chony?

[jhalcott]

  It's because VERY few pistol barrels are chambered in rounds like 250 Sav,300Win mag and even the 30-06 that data is scarce. I won't let my own brother borrow MY chrony, with out a safety deposit. I've seen a few ACCIDENTAL low hits on chronies.  The data is slower for pistol barrels to reduce the blast and improve ballistics. Almost any safe load in a long rifle barrel will be safe in the shorter barrels. Chrony's are NOT that expensive and really are good to have when working up loads.

[quickdtoo]

I second getting a chronograph, it woud definitely help.

Tim

http://www.gboreloaded.com/forums/index.php/topic,105873.0.html

http://www.gboreloaded.com/forums/index.php/topic,58868.msg352955.html#msg352955

http://www.predatormastersforums.com/ubbthreads/showflat.php?Cat=0&Board=5&Number=52567072&page=0&fpart=all

[Graybeard]

There is no reason to use different data for the Encore handguns than for rifles in same chambering. You just get a wee bit less velocity. Just use the standard rifle data and if you feel a need to know what velocity you're getting you'll need a Chrono and that applies even if you're using a rifle as you'll not get the same as the manual did anyway.

[MS Hitman]

Yup, chronographs are  called "heartbreakers" for a reason.

[vanbuzen9]

Thanks everyone for the replies.  I am planning on getting a chronograph someday, but don't have the money for it now, I know, I'm poor.

As far as using the rifle data, I know that it will be safe, but usually manuals use different powders for shorter barrels.  Have any of you guys found that a faster burning powder will work better in a shorter barrel?

I have my eye on one of the 250 savage barrels that Ed's contenders has on his web sight.  I think it would be a better, more efficient shooting cartridge out of the shorter barrel.  But this is my first time experimenting with rifle cartridges out of pistol barrels, so I really know nothing yet.

thanks,
vanbuzen9

[Graybeard]

NO, you do NOT want to use different powder in the shorter barrels of Contenders and Encores. The same powder that works best in a long barrel also works best in a shorter barrel. That faster powders are proper is a false myth.

[offhand35]

Make sure you email or call Ed about what you might be looking for. Someone on this forum advised me of this, his website info is approx a year old! I emailed him on a Friday, he answered back on Sat AM!

[Lone Star]

GB is right-on here, the only advantage of using a faster powder in a short barrel would be a slight reduction in muzzle blast and a slight reduction in recoil - at a cost in velocity. 

For my own .250 in a 16.5" barrel:
75 HP......36.0/H4895........3164 fps
85 BTip....37.0/IMR4320....2937
90 HP......37.0/W748........2805
100 BTip..34.0/H4895.......2839
This data is near max and must be approached from below. It is safe in my XP-100 but is above most factory level load data.  I have additional data for different powders.

From ST Feb/1998, 14" MOA barrel in .260 Remington:
100 BTip...51.0/RL19....2751 fps
120 BTip...49.0/RL19....2601
140 RP-Factory............2221



.

[vanbuzen9]

Thanks guys for all the great posts.  I guess if I truly wanted to know the Velocity, I should probably get a chrony.

For now I will stick with regular rifle data, and email Ed to see if he still has those barrels.

Let me make this statement, I posted a similar question on another popular forum websight and it has gone 2 days without any posts.  I posted this question on GBO this morning and have gotten several replies.  This is really a great websight, and I will post here first from now on.

thanks a lot,
vanbuzen9

[Jim Stacy]

Nosler hand loaders manual has some good data for the 250 Savage. I have one and can verify the results Lone Star got . I have found H4895 to work well in my 250 . There was also a good article written by Bob Milek on the 250 Savage he had made up. I have that article and some data developed by another TC shooter I can copy and send you if you would like it. Send me your address and I copy what I have on 250 Savage and get to you. Heck of a nice round in an Encore .