anyone have any load data or experience with barnes .25 cal. 101 gr. lrx bullets in 257 wby. mag.

[Strother]

anyone have any load data or experience with barnes .25 cal. 101 gr. lrx bullets in 257 wby mag.?

 

[Dmagna]

I started with the same data as the 100 ttsx. I am using n565

 

[Fotis]

70 gr RL26 3525 fps under .75"

 

[Fotis]

and with the 100 TTSX

 

[Quintus]

RL22 will also shine with this bullet. Work up from book starting load for the 100gr TSX. Very similar results to the RL26 load above^

 

[Dmagna]

I am shooting them out of a 26" barrel with N565 at 3650 fps.

 

[lancetkenyon]

RL22 will also shine with this bullet. Work up from book starting load for the 100gr TSX. Very similar results to the RL26 load above^

But RL22 is very temp sensitive. I used to run it in my .25-06AI. I would see 150fps swings, so I had to have two loads. A cool/cold weather load and a warm/hot weather load.

 

[Quintus]

I'm in MN and don't shoot much in the heat. I shoot alot of temp touchy powders that are great performers from 10 below to 70 above.

 

[Lee7588]

I shoot a 100gr Barnes tsx over 72 gr of imr 7828

 

[Philward]

At what temps does temp sensitivity come into play? Less than 20° and over 90°? Depends what temps were when making the load? If loads were developed and temp was 55-75°F would there be any reason to worry unless it's over 100°? I'm guessing if it's -10° when you develop the load and you go to Arizona and its 110° there could be an issue.

 

[Makaira]

Give 7828 ssc a try-very accurate with both Barnes 100 ttsx and 92 Hammer .With the Hammer 74 gr is arount 3830fps.

 

[Gary in MD]

Using the 7828ssc in my 257 with the 100ttsx or the 115 Bergers, always using Fed 215 magnum primers.
Switched from RL22 (great velocity and accuracy) after this temperature sensitive crap got into my head but never really noticed any issues with it. Would be tempted to use H4350 with 100 grain bullets if I was really concerned with the temperature issues, maybe give up a little velocity.

 

[Strother]

Thanks for the info , I'll try to let everyone know how I get along.