Search found 128 matches
- Mon Jul 22, 2019 10:21 pm
- Forum: General airgun chat
- Topic: Twist Rate
- Replies: 11
- Views: 5764
Re: Twist Rate
I was doing 12÷17.7 x 800 fps for the. 177 rpm
- Mon Jul 22, 2019 10:20 pm
- Forum: General airgun chat
- Topic: Twist Rate
- Replies: 11
- Views: 5764
Re: Twist Rate
Multiply that by 60! 800 * 60 * 12/17.7 = 32,542 rpm in .177 Roughly 24,000 rpm in .22 Bloody fast! Its actually 1 in 450mm being bloody European, so yes 17.7inch, I was being lazy I'm European too but still use imperial measurement and metric. My maths was way off. Higher velocity requires higher ...
- Mon Jul 22, 2019 8:59 pm
- Forum: General airgun chat
- Topic: Twist Rate
- Replies: 11
- Views: 5764
Re: Twist Rate
I did the maths for .177
The .22 would be roughly 400 rpm
The .22 would be roughly 400 rpm
- Mon Jul 22, 2019 8:58 pm
- Forum: General airgun chat
- Topic: Twist Rate
- Replies: 11
- Views: 5764
Re: Twist Rate
Like rolls royce and bhp. “Its sufficient to do the job” Lothar airgun blanks seem to be 1 in 18” Quiz: in a 1 in 18 barrel what is the pellet rpm at the muzzle for 12 ft/lb in .22? Yes but turns out the Mpr Barrel is 1 in 17.7 Rpm depends on the velocity of the pellet Peter. Just a quick guess i'd...
- Mon Jul 22, 2019 12:28 pm
- Forum: General airgun chat
- Topic: Twist Rate
- Replies: 11
- Views: 5764
Re: Twist Rate
I sent Air Arms an email asking the twist rates and got a reply saying the technical team advised not to disclose that information
- Mon Jul 22, 2019 9:21 am
- Forum: General airgun chat
- Topic: Twist Rate
- Replies: 11
- Views: 5764
Twist Rate
Does anyone know the correct twist rate for the Mpr-Ft (12ft/lb) model?
I haven't a cleaning rod to check because I use a pull-through to clean the barrel.
Plus the twist rate on the .177 S400f
I haven't a cleaning rod to check because I use a pull-through to clean the barrel.
Plus the twist rate on the .177 S400f
- Mon Jul 22, 2019 9:19 am
- Forum: General airgun chat
- Topic: Dialing for elevation.
- Replies: 24
- Views: 14497
Re: Dialing for elevation.
I thought that might generate more discussion but I would have thought hold-over is a more used technique in vermin hunting where by the time you’ve faffed around with focussing your 30x and consulted the chart the rat has beggered off. It’s easier to set up a 4-9x at 25 yd and hold over. (Or even ...
- Sat Jul 20, 2019 7:32 pm
- Forum: General airgun chat
- Topic: Dialing for elevation.
- Replies: 24
- Views: 14497
Dialing for elevation.
Hello guys and girls. Who here dials for elevation using the turret instead of holding over or under using the reticle? What scopes are good for this? I've been using Strelok for a rough guide and it seems pretty accurate. Dialed 16moa for a 80 yard target and was half an inch high which isn't bad. ...
- Wed Jul 17, 2019 1:23 pm
- Forum: TECHNICAL
- Topic: Changing left hand bolt to right hand?
- Replies: 10
- Views: 14629
Re: Changing left hand bolt to right hand?
The standard AA factory alloy bolt handle comes in two pieces and can be assembled either way round. Of you have one with an aftermarket handle like Rowan one piece brass handle then you will have to replace it When replacing the handle on the bolt you must avoid getting loctite in the bolt housing...
- Tue Jul 16, 2019 7:05 pm
- Forum: TECHNICAL
- Topic: Changing left hand bolt to right hand?
- Replies: 10
- Views: 14629
Re: Changing left hand bolt to right hand?
Won't a right handed bolt handle be upside down if installed as a left handed bolt though?Blackbaronfish wrote: ↑Tue Jul 16, 2019 5:28 pmIt’s a case of removing the bolt housing and flipping a pin inside. The bolt just moves into position once you have undone it and warmed the loctite
Pretty straight forward really
BBF