7rem mag loads 140 grain partition

[john 800]

I am looking to try some 140 parttions, a bit lighter than i have shot in my 7 mag. I have re22,imr 7828, imr 4350, imr and h4831,h1000, a few others maybee.
what do you think? Which one would you start with? Looking for a fast load with decent accuracy

 

[PhilC]

I'd start with Nosler's recommendation for most accurate powder with the 140 - Viht N165. FWIW, decades ago, I had great success with IMR-4350 and 150BTs.

 

[topsail86]

I use 64 gr H4831 for 140 and 150 gr Ballistic tips and Partitions. 140 are a bit over 3000 fps. Very accurate. Deer hammers.

 

[tominboise]

I have a Winnie M70 Classic stainless in 7mmRM. It has a 26" barrel. 65.5gr RL22 with the 140gr Nosler Partition is a good load in my rifle. I use RL25 with 160gr bullets in this rifle as well.

 

[AckleymanII]

64-66g of IMR or H 4350, Rem case, Rem 9 1/2, barely touch the lands.
64=3150
66=3250 out of 26" barrels, approximately

67g of R#19, Win case, fed 215 primer, work up to this load; 3300 fps approximately

68g of R#22, cci 250 Work up to this load; 3200 fps

If you decide to go to a 150g partition, 72-73g of R#25 in a Rem case with Winchester Magnum primers will be 3200-3250; SD less than 10 fps, extremely accurate, start at 69g and work up. We have also use these loads with 154g Hornady flat base and 150g ballistic tips. The load is rough on Remington brass' primer pockets, but we love the accuracy, SD, and speed.

 

[sbhooper]

For that bullet, I would go with the Re 22, and/or 7828. No bad choice there. I don't push mine real hard, loading to only about 3100 with 139 Interlocks. Fine accuracy from both powders and works great on deer/antelope. I have also tested the Partitions, with same results.

If heavier bullets are on the menu, I like Reloder 25 and Re 33. Both easily hit 3000 fps, with a 160 Partition and I have gotten over 3000 fps using 175 Interlocks/Partitions, with great accuracy.

My rifles both have 26-inch barrrels.