Author Topic: 455 17 hmr accuracy tuneup  (Read 343 times)

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Offline lavv

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455 17 hmr accuracy tuneup
« on: May 28, 2017, 06:45:32 AM »
I'm a long time Savage fan, and have a 93r17 rifle, that shoots kinda average, but has a horrible bottom plate and magazine design. So, I've upgraded to a 455 varmint evolution in 17 hmr caliber. It's gorgeous and very solidly built, no obvious design flaws. Now, the bad part... the accuracy out of the box is not good, like slightly under 2 inch 5 shot groups at 100 yards from a bench. I got about 250 rounds through it, and it  does't seem to hit consistently what I aim at. For comparison my old 93r17 gets between 1.3 and 1.4" groups at 100 yards with any kind of vmax ammo.

So, is there an article / post that describes the things I need to do to tune this one? Any suggestions? I personally think the trigger is pretty light, it can go lighter I guess, and since I got the evolution stock, the barrel seem pretty free...

Thanks

Offline Tommyid1

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Re: 455 17 hmr accuracy tuneup
« Reply #1 on: September 12, 2017, 03:07:55 AM »
retorque your action screws and barrel screws.  shoot alot more and DO NOT clean it.  Mine was like that the first 400 -500 rds and it was amazing how much the groups tightened up.  i swear it shoots better and better the more i shoot it.

Offline 10-96

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Re: 455 17 hmr accuracy tuneup
« Reply #2 on: September 16, 2017, 12:14:33 AM »
Hate to butt in, but would anyone happen to know the torque specs for the action and barrel screws?  Many thanks.
If at first you don't succeed, get a bigger hammer.

Offline painter

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Re: 455 17 hmr accuracy tuneup
« Reply #3 on: September 17, 2017, 05:16:16 PM »
Hate to butt in, but would anyone happen to know the torque specs for the action and barrel screws?  Many thanks.
No more than 25 in/lbs on the action, or you'll crush the wood and bend the bottom meta. CZ recommends 40 in/lbs for the barrel screws, but most use 33-35.
I had the right to remain silent...

but not the ability.

Offline 10-96

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Re: 455 17 hmr accuracy tuneup
« Reply #4 on: September 18, 2017, 01:34:32 AM »
Awesome, Thanks Painter!
If at first you don't succeed, get a bigger hammer.