243 reduced loads
I vote for 243. If the factory ammo is still too much for him and you are able to reload, here is some info that I found on another site that might be helpful for you.
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Test Rifle: Ruger 77 Mk 2, Stainless, Laminated Stock
87 Hornady, 90 Grain Ballistic Tip, or 90 grain Speer HOT core: 87 tested, 90 grain Ballistic tip only about 10 fps slower across the board:
15 grs: 2108 fps
16 grs: 2226 fps
17 grs: 2323 fps
18 grs: 2415 fps
19 grs: 2487 fps
20 grs: 2580 fps
21 grs: 2652 fps
22 grs: 2741 fps
OAL: 69.60 mms, Fed 210 Primer
95 grain Ballistic Tip or Partition ( one of my favorites)
OAL: 70.50 mms
15 grs: 2080 fps
16 gr: 2159 fps
17 gr: 2250 fps
18 grs: 2295 fps
19 grs: 2420 fps
20 grs: 2514 fps
21 grs: 2601 fps
22 grs: 2693 fps
The Partition will open to about 2000 fps. The ballistic tip will open to about 1400 fps. Verified via call with Nosler's tech line yesterday.
Hornady 100 gr SP:
OAL: 69.25 mms
15 grs: 2019 fps
16 grs: 2113 fps
17 grs: 2207 fps
18 grs: 2299 fps
19 grs: 2365 fps
20 grs: 2438 fps
21 grs: 2512 fps
Consider 20 grains max SAFE load in all guns, 21 grains was safe in my rugers and winchester model 70. Gave extraction stiffness in my Rem 700 in 243.
My second favorite, after the Ballistic tips:
Speer 105 gr SP;
16 grs: 2050 fps
17 grs: 2142 fps
18 grs: 2239 fps
19 grs: 2311 fps
20 grs: 2412 fps
21 grs: 2483 fps
22 grs: 2561 fps
All of the data was done with Rem brass, Federal 210 primers.
Test firearm was a Ruger 77 Mk 2, although tested safe in Winchester Model 70 and Rem 700. Only problem with a Rem 700 was noted.
Please work up all loads and do not start at max, since all firearms are different.
The idea was a light recoil rifle, with bullet capable of taking deer at these velocities within 200 yds, max range. My speaking with several very knowlegable pistol shooters was that MV should be at least 2000 fps.
Consult trajectory tables in the appropriate manuals. Accuracy with all of these loads in my rifles tested minute of angle or less. Less more often than not.
Data is pretty interchangable with 6mm Rem, as I have tested it also, but not much notable difference in data occurred.
Good luck to the kids, and women that utilize this data for this seasons hunts. Would appreciate hearing any success stories. ( Good luck also to we guys who don't need to cater to the macho factor when we deer hunt).,
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Gotta thank Seafire on
www.accuratereloading.com for compiling this info.