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Positional Slings & Hunting
- By Zigjib
- Bolt Action Rifles
- 4 Replies
Yeah mate.
Personal opinion, Slings have become far too complicated. I have the SAP on my SPR. I've gone back to just an MS1 sling. No loose straps and buckles to get caught on shit and dig into me and ruin my hike. Not picking on SAP, all modern slings are like that for some reason.
WRT "clipping in" to the tripod, the short answer is that it depends on where your tripod is mounted.
The theory that resulted in "clipping in" was that if the pivot point (where the tripod mounted) was forward towards the muzzle, we could have larger movement at the rear of the rifle (shooter error), and smaller movement at the front. That's basic maths and shit yo. The problem was, that the CoG of the rifle was towards the rear. This caused the rifle to want to tilt backwards, particularly under recoil, but as this was discovery phase in tripod use, most camera tripod ball heads of the time couldn't support the sorts of weights that precision rifles are. So the rifle would cause the ball head to tilt backwards under weight. We have less angular effect on the muzzle, but we have now incurred instability due to the weight. The solution here was to attach the sling and pull the muzzle end down to off set the balance. NOW, modern era, we have guns and equipment that allow attachment of the tripods closer to the rifles CoG and ballheads that can support this sort of weight. In that instance, by clipping in, what you are doing is actually causing the same problem of the older style mounting, but instead of the butt dipping down, now the muzzle is being pulled down by the sling. Thus, sling clipping in went away.
TL;DR, if you mount your tripod way out front, clip in. If you have a modern setup, just make sure it's tight and at the CoG of the gun.
Personal opinion, Slings have become far too complicated. I have the SAP on my SPR. I've gone back to just an MS1 sling. No loose straps and buckles to get caught on shit and dig into me and ruin my hike. Not picking on SAP, all modern slings are like that for some reason.
WRT "clipping in" to the tripod, the short answer is that it depends on where your tripod is mounted.
The theory that resulted in "clipping in" was that if the pivot point (where the tripod mounted) was forward towards the muzzle, we could have larger movement at the rear of the rifle (shooter error), and smaller movement at the front. That's basic maths and shit yo. The problem was, that the CoG of the rifle was towards the rear. This caused the rifle to want to tilt backwards, particularly under recoil, but as this was discovery phase in tripod use, most camera tripod ball heads of the time couldn't support the sorts of weights that precision rifles are. So the rifle would cause the ball head to tilt backwards under weight. We have less angular effect on the muzzle, but we have now incurred instability due to the weight. The solution here was to attach the sling and pull the muzzle end down to off set the balance. NOW, modern era, we have guns and equipment that allow attachment of the tripods closer to the rifles CoG and ballheads that can support this sort of weight. In that instance, by clipping in, what you are doing is actually causing the same problem of the older style mounting, but instead of the butt dipping down, now the muzzle is being pulled down by the sling. Thus, sling clipping in went away.
TL;DR, if you mount your tripod way out front, clip in. If you have a modern setup, just make sure it's tight and at the CoG of the gun.
Velocity differences between 6.5cm brass brands
- Reloading Depot
- 5 Replies
Yes, reduced case capacity will increase velocity. To what extent depends on by how much it's reduced.
There does tend to be a significant difference between Hornady brass compared to Federal brass. . . on average. Because there can be significant difference from one lot of brass to another within a particular manufacturer, there can be a big difference, like where Hornady's cases might be at the very low end of capacity and Federal's at the high end of their variance. This why it's always a good idea to actually measure case capacity whenever one gets a new lot of brass or when making a move to a different brand.
So, to your question, "is this normal", the answer is YES.
If I understand your question "Are the higher speeds with some brands just a free velocity increase?"; if you want to put it that way . . . yes. Like Winchester brass is known to have much larger case volume in their .308 brass that allows more powder for increased velocity with a lower pressure threshold. Cases with smaller case capacity may produce more velocity but with a lower pressure threshold.
For my .308 have have numerous brands of cases and have measured their capacity to see what the differences are. . . and I've recorded it all (all but those that just aren't used much, which I've picked up as my shooting ranges).
The best thing to do is to stick to one brand of case until they can't be used any longer. Even when you stick to a brand but get a new lot, it good to check the new lots capacity as it's not unusual to have to make a change in the powder charge. Below is an example from Peterson Cartridge Company's Test Data showing variations in their 6.5 CM cases:
Any ideas on attaching a CRUSH IT timer to a bino harness?
- By cwinner
- The Armory
- 3 Replies
Attachments
Firearms Hayes custom rock island vr80
- By CplGardner
- Buy - Sell - Trade
- 3 Replies
Rock island vr80 that’s been sent to Hayes customs for their old turn key race gun tier 2 package. $1500 service package with all details listed in picture below. Comes with 2 19 round mags and one 9 round mag. $1600 obo
