|
|
|
S |
M |
T |
W |
T |
F |
S |
|
|
1
|
2
|
3
|
4
|
5
|
6
|
|
7
|
8
|
9
|
10
|
11
|
12
|
13
|
|
14
|
15
|
16
|
17
|
18
|
19
|
20
|
|
21
|
22
|
23
|
24
|
25
|
26
|
27
|
|
28
|
29
|
30
|
|
|
|
|
|
|
Forums10
Topics38,444
Posts544,814
Members14,406
| |
Most Online1,258
Mar 29th, 2024
|
|
|
|
Joined: Nov 2019
Posts: 5
Boxlock
|
OP
Boxlock
Joined: Nov 2019
Posts: 5 |
This topic has likely been covered but I'm new to the site and can not find it. Please humor me. Your help would be greatly appresiated.
I prefer balistic tips for whitetails so I bought some 7x65R Norma Strike Tip 160GR for my Sauer combo. Its a 50's gun. Best "groups" at 100 yards were 6". Shot some Sellier & Bellot and three shot groups are maximum of an inch. On this gun I realize I'm likely religated to the S&B.
Picked up a Kriegoff 7x57 / 22 Hornet last week. I tried Nosler 140 AccuBond in the 7x57. It groups right at an inch; however, its 10" high and 5" right. Thats an easy fix.....BUT.....the Hornet is deadly acurate at 100 yards. My concern is that if I ran S&B thru it as is (with no adjustments) it might also be balls on.
Have you all been having these types of issues with the more modern ammunition?
Thanks
KB
|
|
|
|
|
Joined: Aug 2007
Posts: 10,775 Likes: 183
Sidelock
|
|
Sidelock
Joined: Aug 2007
Posts: 10,775 Likes: 183 |
I have found that velocity is the key and that is of course regulated by powder, which I am not sure which you have loaded. Also not sure why the success, but I have migrated to all VV powder when possible, & the accuracy is phenomenal on Combos across the board. Now, I had to shoot quite a bit, grain by grain to find the solution but the Combo will tell you what it fancies.
Cheers,
Raimey
rse
|
|
|
|
|
Joined: Nov 2019
Posts: 5
Boxlock
|
|
OP
Boxlock
Joined: Nov 2019
Posts: 5 |
That all makes sense as I was a reloader for many years; however' I guess I was unclear in my post. All rounds I refered to are factory rounds.
|
|
|
|
|
Joined: Aug 2007
Posts: 10,775 Likes: 183
Sidelock
|
|
Sidelock
Joined: Aug 2007
Posts: 10,775 Likes: 183 |
Alright then, I'd check velocities with a Chrony. Or @ least check published plus verify the bore diameter.
Cheers,
Raimey
rse
|
|
|
|
|
Joined: Aug 2007
Posts: 10,775 Likes: 183
Sidelock
|
|
Sidelock
Joined: Aug 2007
Posts: 10,775 Likes: 183 |
Was the S&B 7X65R the SPCE 173 grain bullet? Bullet weight can also be a factor. Is there a bullet type & weight stamp on the Combo(s)?
Cheers,
Raimey
rse
|
|
|
|
|
Joined: Nov 2019
Posts: 5
Boxlock
|
|
OP
Boxlock
Joined: Nov 2019
Posts: 5 |
Yes the SB is 173 SPCE. Its a classic Geman pass thru bullet. Shot two 120 pound white tail does and both ran. Not far but ran. I dont want to shoot a 200 plus buck and have that result. A BT bullet would do better if I could find one that would shoot.
|
|
|
|
|
Joined: Aug 2007
Posts: 10,775 Likes: 183
Sidelock
|
|
Sidelock
Joined: Aug 2007
Posts: 10,775 Likes: 183 |
I am not sure about a German pass thru bullet, but maybe a Bohemian or Czech?
Cheers,
Raimey
rse
|
|
|
|
|
Joined: Aug 2007
Posts: 10,775 Likes: 183
Sidelock
|
|
Sidelock
Joined: Aug 2007
Posts: 10,775 Likes: 183 |
Ford should be along shortly, possibly with some novel ideas.
Cheers,
Raimey
rse
|
|
|
|
|
Joined: Jul 2012
Posts: 4,461 Likes: 207
Sidelock
|
|
Sidelock
Joined: Jul 2012
Posts: 4,461 Likes: 207 |
MKB,
I have had similar experiences over the years. I bought a used drilling with a scope already mounted. On a guess, I loaded some 173 grain bullets I had brought back from Germany to about the RWS velocity. I didn't have to touch the sighting. Since the 1970s I have had an O/U 7x57R/16 ga. It was also regulated for the 173 grain bullet. I tried several combinations in it, looking for a load with a little more velocity. That gun would shoot Brenneke slugs into my hat at 100 meters if the 7mm barrel was sighted an inch and a half high and I held half way up on the vertical post of the reticle. Also bullets lighter than the 162 grain TIG shot high and right like you experienced. I believe this is due to the fast rifling twist. I just went back to factory ammo or handloads with 173 gr bullets at factory velocity. Your problem with the 7x57R is very similar to mine, but American 22 Hornet ammo is loaded to higher than European velocity. I suggest you load the 7x57R with a 170-175 gr bullet to about factory velocity and load the hornet with a 40-45 gr bullet to about 2400 fps and see if that helps. Unless your 7x65R shoots slugs as well as mine did, you don't need to worry about two different barrels shooting to different points of impact. This will free you to use whatever load is best for the rifle barrel, whether factory or a handload, you can just re-sight it to fit the ammo. I hope this helps. BTY, if you shoot them high in the shoulder( hoch blatt?) they are not as likely to run.
Mike
Last edited by Der Ami; 12/11/20 10:00 AM.
|
|
|
|
|
Joined: Nov 2019
Posts: 5
Boxlock
|
|
OP
Boxlock
Joined: Nov 2019
Posts: 5 |
That makes good sense to me Der Ami. I guess my question could certainly been more clear. I spent 3 years hunting in Germany and they like big and slow with little fragmentation as they sell the meat. Bottom like is from what I have seen and heard is that these old guns have a twist suited to the long heavy slow bullets which makes sense. My desire was to find a fragmentation bullet....not to get speed. Unfortunety the better bullets from factory are much lighter and hotter. I just ordered 2 different RSW rounds and will see how that goes.
I see you are in Alabama like me....what part?
|
|
|
|
|
|
|
