So I have a 6.5 prc that I am sighting in later this week to hopefully use to hunt white tail deer in the Midwest. My target ammo for sighting in is 147 grain and my hunting ammo is 143. Does anyone know if the change in grain is so much that my rifle will be a little off or will it be okay since it is only changing 4 grains?
Sighting in
- Thread starter HAT897
- Start date
xphunter
Handloader
- Sep 15, 2005
- 1,244
- 2,250
It is almost for sure to be off some. You should be on paper still at 100 yards though.
You could get lucky and it be unchanged, but I expect it to be off some.
Get a good rest (Front and rear), and check your 100 yard zero.
- Nov 4, 2004
- 25,459
- 9,291
I would sight in with your hunting load. Why risk it?
JD338
JD338
RiverRider
Handloader
- Dec 9, 2008
- 1,454
- 107
It would be crazy to sight in with one load and then go hunt with another load without checking for a POI change. Spend the two or three or four or even ten rounds to get your zero where you want it, or you may end up tracking a wounded animal for hours on end and never even find it.
salmonchaser
Ammo Smith
- Dec 13, 2013
- 5,118
- 5,459
You may find very little difference if you're lucky, could be substantial.
It will only take two shots to determine if you have more work to do.
My 06 shifts vertical about 1 1/2 inches between 150s and 180s, the 180 poi is lower as you might expect.
My 300 HH is zeroed 1 1/2 high at 100 yards with 180 Accubonds. 150ttsx group 1 inch right and 1 1/2 inches low of the accubonds.
A deer at 100 wouldn't know the difference at 300 yards the difference is significant.
Keep a good log book, I highlight in mine if I shift zero to shoot inexpensive Interlocks on steel. With the 300 I add four clicks elevation and a couple for right windage.
Good luck on your hunt, give us an update when you're done.
It will only take two shots to determine if you have more work to do.
My 06 shifts vertical about 1 1/2 inches between 150s and 180s, the 180 poi is lower as you might expect.
My 300 HH is zeroed 1 1/2 high at 100 yards with 180 Accubonds. 150ttsx group 1 inch right and 1 1/2 inches low of the accubonds.
A deer at 100 wouldn't know the difference at 300 yards the difference is significant.
Keep a good log book, I highlight in mine if I shift zero to shoot inexpensive Interlocks on steel. With the 300 I add four clicks elevation and a couple for right windage.
Good luck on your hunt, give us an update when you're done.
