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NEWBIE question
Posted by vixty on February 23, 2015 at 10:21 amSo I have a tikka 30-06 that I had rebored to a 35 whelen and I'm currently developing loads for it and got some pretty good results my first time to the range but I have a question about a grouping. I shot a four shot group and made two holes about 1 inch apart, one at the 7 oclock position and one at the 2 oclock position. What does this mean as far as the load? It was a perfect one hole than two hole and the other two shots repeated the same pattern. I had this happen with another rifle as well and still can't seem to find the right load for it.
Thanks,
Mattvixty replied 9 years ago 4 Members · 10 Replies -
10 Replies
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1 Bullseye
Not quite there on the load or you might want to try adjusting seating depth or both.
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21 Bullseyes
Can you post some pics of your targets?
Also a question, you had a 30 cal Sako barrel (Tikka) re-bored and rifled to 35? was this cheaper than putting a new barrel on? I wasn't aware that this was even possible.As far as load development, take a look at Eric Cortina's post on 100 yard load development on accurateshooter.com forum.
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1 Bullseye
It cost me 250 bucks to have the 30-06 barrel rebored to the 35 whelen. I don't have pics of the target but I was getting 250gr loads shooting at .7 moa. The 35 whelen is a 30-06 case with a .35 bullet so it didn't take much work. I used jes reboring in oregon.
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1 Bullseye
I don't have pictures of the target and unfortunately I'm out of town for 3 weeks.
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21 Bullseyes
The 35 Whelen is a great cartridge! I don't have any first hand experience with it but you are all set for Moose and Elk!
As far as groups are concerned, you can minimize the variables. Get sand bags set up so each shot doesn't make you change anything. In other words, if you are not touching the gun, the scope crosshairs sit on the bullseye. Snuggle up without changing anything and touch off the shot. Your groups will be representative if not tighter.
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1 Bullseye
I shoot from two sand bags while testing loads but really wish I had a sled. I'm back in town this week and will test some new loads to see if that helps. Its been killing me being away for almost 3 weeks and thinking about how my new loads will shoot.
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21 Bullseyes
I don't have experience with sleds, but I am sceptical that they are the best way to test loads.
If you find the recoil distracting or objectionable you might want to change gun/caliber. Note that recoil is just one part of the issue. As a bullet accelorates through the bore, the rifling imparts spin wich in turn creates torque on the rifle. Heavy bullet & fast spin = more twist force.
Anyway get a good bipod and rear bag. -
105 Bullseyes
Every rifle I shoot groups better with a front rest or Bipod / rear bag setup from a bench or prone…everything allowing the rifle to naturally slide backwards with the recoil. When I plan on target shooting the larger calibers in light stocks I just add a brake to the rifle…I'm not shy about that. I love muzzle brakes.
Sleds have never helped me gain better accuracy or help improve any shooting form/technique…its actually had the opposite effect. Creates bad habits and makes you more recoil shy when you can't use it.
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1 Bullseye
I went ahead a bought a cheap 30 cal muzzlebrake and opened it up for the .35 caliber while I wait for my suppressor to arrive. Hopefully I can get out this weekend and test more loads.
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1 Bullseye
Finally got a load worked up for the Whelen.
After much invested time, it shoots slightly better than the hornady ammo I have previously shot thorough the rifle. Only difference is I'm using 250gr bullets instead of the 200gr that hornady uses. I can't wait to get my suppressor so I can try it out on her.She likes 54.6gr of varget over a 250gr Hornady interlock SP. I still need to pull out the chrono so I cant get my CDS turrets ordered.
Heres a 6 shot group with the cold bore shot being the stray. Not to bad since a bullet side by side is .70in and it only has a 16″ barrel.
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