I was doing 12÷17.7 x 800 fps for the. 177 rpm

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 ...

I did the maths for .177
The .22 would be roughly 400 rpm

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...

I sent Air Arms an email asking the twist rates and got a reply saying the technical team advised not to disclose that information

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 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 ...

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. ...

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...

Blackbaronfish wrote: ↑

Tue Jul 16, 2019 5:28 pm

It’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

Won't a right handed bolt handle be upside down if installed as a left handed bolt though?