skinner313
Beginner
- Dec 21, 2010
- 39
- 0
Looking too get a little more velocity with a 160 AccuBond,my current load with IMR-4350 is averaging only 2725fps. Anyone have any experience with this combo.
reloader 22 in a 7mm rem. magnum
- Thread starter skinner313
- Start date
Reloader 22 can be very good in a 7mm Rem Mag. It is usually a top performer.
However, the Nosler TGR rifle I am currently working with shoots a good deal better groups and gives more velocity when using IMR 7828.
In fact, I was having trouble getting the Nosler claim of MOA groups till I switched to IMR 7828. IMR 4831 and RL 22 would not do it consistantly.
The real surprise came when I tried the Barnes 160 grain TSX over IMR 7828 in a Winchester case and a Fed 215M primer. Easy to get under MOA groups and one outstanding group of 0.296 inches, at just short of 3000 fps.
You just have to mess around with rifles to see what they like. Another 7mm Rem Mag I worked with a while back shot best with RL 25.
However, the Nosler TGR rifle I am currently working with shoots a good deal better groups and gives more velocity when using IMR 7828.
In fact, I was having trouble getting the Nosler claim of MOA groups till I switched to IMR 7828. IMR 4831 and RL 22 would not do it consistantly.
The real surprise came when I tried the Barnes 160 grain TSX over IMR 7828 in a Winchester case and a Fed 215M primer. Easy to get under MOA groups and one outstanding group of 0.296 inches, at just short of 3000 fps.
You just have to mess around with rifles to see what they like. Another 7mm Rem Mag I worked with a while back shot best with RL 25.
- Thread starter
- #6
skinner313
Beginner
- Dec 21, 2010
- 39
- 0
Just got back from shooting.Started at 60 grains and worked up to 63 which according to nosler is there max. I recorded 2815 (avg) with the 63 and no signs of pressure. Might try going up in half grain increments this weekend.
- Nov 4, 2004
- 24,503
- 6,947
skinner,
RL 22 should get you where you want to be.
JD338
RL 22 should get you where you want to be.
JD338
Guy Miner
Master Loader
- Apr 6, 2006
- 17,554
- 4,933
RL-22 and the 160's are a match made in heaven. Terrific stuff there.
Sierra lists 65 grains of RL-22 as an "accuracy load" with their 165 gr SPBT bullet. I've used that load with several different 160's, always with very good results, and about 3,000 - 3,100 fps as stated by others.
Work up to it, watching for pressure signs. Never had a problem with that load in at least four different 7mm Rem mags I've tried it in.
Guy
Sierra lists 65 grains of RL-22 as an "accuracy load" with their 165 gr SPBT bullet. I've used that load with several different 160's, always with very good results, and about 3,000 - 3,100 fps as stated by others.
Work up to it, watching for pressure signs. Never had a problem with that load in at least four different 7mm Rem mags I've tried it in.
Guy
Oldtrader3
Ammo Smith
- Nov 6, 2009
- 8,406
- 5
I use IMR 2878 SSC in my 24 inch barrrel 7mm Rem Mag and get over 3000 fps @15 feet IV withh 66.0 grains and Mag Match primers. Something to consider if RL22 does not work out for you.
I got pressure signs in my Savage Tactical 110 at 64 grs of RL 22 but it was 108 degrees that day too :mrgreen:
63 grs with a 160 AB clocked 3075 at 10 feet and printed a dime sized group.
It also shot all the way through 200 lb Missouri doe that was facing my buddy head on.Stem to stern.
As we were facing west I am pretty sure that bullet ended up in Kansas somewhere judging by the furrow it plowed upon exiting.
Howard
63 grs with a 160 AB clocked 3075 at 10 feet and printed a dime sized group.
It also shot all the way through 200 lb Missouri doe that was facing my buddy head on.Stem to stern.
As we were facing west I am pretty sure that bullet ended up in Kansas somewhere judging by the furrow it plowed upon exiting.
Howard
C.Smith
Handloader
- Oct 11, 2006
- 1,411
- 0
I'm using 66.0 grains of RL22 in my 7mag and get around 2980 fps and under 1 inch groups. I worked up to it and I'm very pleased with the results.
Corey
Corey
Oldtrader3
Ammo Smith
- Nov 6, 2009
- 8,406
- 5
As many of you guys are aware, 7mm Rem Mag chamber reamers seem to vary a little. This was a bigger problem in the 1960's when individual rifles seemed to have a pressure profile in this caliber which made maximum loading a "within 5% predictability" variance span in a caliber which climbs over-the-top in pressure pretty fast. My Pre-1970, Mark X Mauser displays this behavior and has taught me to be careful with this caliber.
For these reasons, I have always been pretty reluctant to give others maximum load numbers without lots of caveats about watching pressure signs. Even standard factory loaded cartridge brands seem to vary a couple hundred FPS of muzzle velocity in the 7mm Rem Mag from rifle to rifle or by manufacturer. Both of my 7mm Rem Mag rifles were European made and both generated velocities within SAAMI specification up to maximum loads. I do not have any experience with American manufactured rifles in this caliber. Just my $.02 worth.
For these reasons, I have always been pretty reluctant to give others maximum load numbers without lots of caveats about watching pressure signs. Even standard factory loaded cartridge brands seem to vary a couple hundred FPS of muzzle velocity in the 7mm Rem Mag from rifle to rifle or by manufacturer. Both of my 7mm Rem Mag rifles were European made and both generated velocities within SAAMI specification up to maximum loads. I do not have any experience with American manufactured rifles in this caliber. Just my $.02 worth.
- Thread starter
- #14
skinner313
Beginner
- Dec 21, 2010
- 39
- 0
Had some issues with loading the 160's. But i did load up some 140BT using reloader 22. I think i have a winner.
DrMike
Ballistician
- Nov 8, 2006
- 37,023
- 5,314
That is indeed a fine group. Congratulations. Deer, beware.
- Thread starter
- #16
skinner313
Beginner
- Dec 21, 2010
- 39
- 0
I'm pretty happy the shot that is out was from a cold bore. Now i have too see what it will do out to 500.
