I have a Remington 700 Mountain Rifle in 270, blued barrel, with a wood stock. I have H4350 and H4831SC on hand. The Barnes tech guy sent me the latest excerpt from their manual regarding said caliber and bullet weight. Hodgdon powders has great load data and I've referenced that as well.

Does anybody have any pet loads for a 270 with either of those two powders with a 130gr TSX?

I'm concerned over the "off lands" issue. Barnes recommends going with their COAL that they used and start from there. Any ideas? The Barnes bullets seem to be finicky about the seating off the lands.

Any help here would be appreciated.

M

My 270 does really well with 58.5gr of H4831. Not a max load but gives ragged dot accuracy. I use an OAL of 3.30"

I gave up with H4831SC in 270 Winchester as it does not appear to be graphite coated. So I had a lot of "bridging" in my RCBS Powder Thrower. I went back to standard H4831 "Long Grain".

I have a lot of info on H4831SC and "Long Grain" with a 140 grain Hornady Interlock. There is a series of them under "not yet verified" section for the 270 Winchester on the www.reloadersnest.com site.

quote:

Originally posted by 30378:
My 270 does really well with 58.5gr of H4831. Not a max load but gives ragged dot accuracy. I use an OAL of 3.30"

Thanks on that, I'll give it a try.

I worked up to 60 gr H4831 SC in my pre 64 and it shoots great with both the TSX and TTSX. TSX seated at 3.375 and TTSX at 3.30 in this rifle.

Work up to the 60 as it is begging to look maxy in this rifle.

I have used the tsx and ttsx in 4 diameters and 6 cases so far and have not had any of the seating depth issues I had with the old "X" bullets. With very little effort all of the rifles I loaded TSXs in have reached at least MOA.

Stay with a Ballistic Tip

I would if it weren't for the double duty as Mule Deer/Elk rifle. A 300 Win Mag with a 180gr Ballistic Tip will do the job, but a 270 with a 130gr Ballistic Tip is not up to the task regarding the Elk. With limited hunting opportunities, a man has to hedge his bets as best he can. The 130gr TSX is the perfect fit for me and my 270.

With my 270, I use 61.5gr of H4831sc and it gets about 3150fps and sub-moa, using a 130gr TSX.

I have used Barnes X, XLC and now the TSX since about 1992. I have only recovered one X from an elk and it retained 100% weight. Excellent elk medicine.

This is a safe load in my rifle, and the usual disclaimers apply.

I'll be making up some loads this Friday.
I'm thinking of using 1gr increments per load, starting with the max and going down.
I'll make 4 rounds per load for a total of seven load groups.

I'll be using H4831SC with Barnes 130gr TSX

60gr max (from Hodgdon's site)
59gr
58gr
57gr
56gr
55gr
54gr min (from Hodgdon's site)

with a COAL of 3.300" (Barnes recommended)

Is the 1gr increment/load sufficient or would .5gr/load be better for this caliber?
Will the 4 rounds/load be too few?

Thanks for the help

M

For a hunting load, I want the highest speed with the best accuracy, so I don't generally load any minimum loads. I'll use the top 3-4 charge weights, and seperate them by 1/2gr increments, and load them by threes. Then, I load single rounds at 1/2 gr more powder, looking for high pressure. If no accuracy, I switch powders. I really wanted to use RL22, as I got about 3225fps (safely) with it, but also horizontal stringing, so I went back to H4831sc.

My lot of components,in my rifle, might show pressure sooner or later, than the load books.

If your gun is clean and bedded, and if you are confident in your shooting, this is what I did with my .270 w/130 TSX H4831SC. Cheaper than stacking.

Start @ 57 grain working up 1 gr. to 61 gr. checking for signs(stick bolt, primer)

Then work down 0.5 gr. firing 2 shot groups each a total of 10 shots.(57 gr.)

Then 3 shot or 5 shot confirmation on best 2 shot group.

20 rounds or so.

I have not shot 130 TSXs in the .270, but have shot 110 TSXs and 140 TSXs and also 168 TSXs in the .300 WSM. I have started .03 off the lands which is where I start with any bullet and have gotten very good accuracy results. I think with the old Xs you had to seat .05 off, but have not seen this with the TSXs.

Lou

Currently, there is a debate around here at home as to why go down in grain from a 140gr Accubond or 140gr Failsafe to a 130gr TSX. For me, it's an accuracy issue. The 130's work best in my Rem 700 Mtn rifle plus the TSX's hold together better (at least when compared to the Accubond).

Will working up loads for the 270 on Thurs 9/10...deer season starts 10/3...time to sweat!

M

TSX's tend to be feast or famon for me. Mostly feast, meaning they usually shoot great for me. I have found I usually have to get near max charges to perform well. If you are using H 4831, either version, I think you'll find good results. How you work it up is pretty much moot, you'll be able to tell what you need with the methodology you described, the lauded technical method I've seen for ever is easy to find on AR with a search, I think the highly knowledgeable Hot Core refers to it as 'The never improved upon Creighton Audette method' or something like that. Do a search for it, it's worth a read.

My typical load for 130 gr TSX's in over 7 differnt 270's (That's not all I own--I have too many I admit it) ends up around 58-60 grains with the H 4831 series powders, COL short enough to get me about 35 thou off the lands, and obviously, I suppose--function in the mag box of the given rifle.

Good luck!