F/TR Rests

F/TR is the international full bore class for .308 and .223, currently being trialled around Australia.
Guest

F/TR Rests

Post by Guest »

Any bush lawyers who know what you can and can't get away with?

Bipods may have 50mm spikes or skis. What about metal channels spiked to the ground for the skis to run in?

Can rear bags be spiked to the ground? Or sit in boxes which are? Elevation adjustments in the rear rest are specifically allowed but what about windage?

Any advice gratefully received.

Barry
RAVEN
Posts: 1979
Joined: Sun Jun 19, 2005 9:37 pm
Location: Adelaide South Australia (CTV)
Has thanked: 97 times
Been thanked: 137 times

Post by RAVEN »

Bipods may have 50mm spikes or skis. What about metal channels spiked to the ground for the skis to run in?

Does it say that in the ICFRA rules :-s

Can rear bags be spiked to the ground? Or sit in boxes which are? Elevation adjustments in the rear rest are specifically allowed but what about windage?

If you read the ICFRA rule pertaining to rear rest in F/TR I’m fairly sure it explain what you can use.
Barry If they specify spike for the bipod do they specify spike for the rear bag if not I would say you can use spike on a bag why would you anyway you will need to adjust the rear bag after recoil how will you do that if it spiked to the ground.
ICFRA Rules are available through a link in the RULES section on front page of this forum.
My advice would be to have a read :idea:
Southcape
Posts: 707
Joined: Tue Aug 16, 2011 7:57 pm
Location: Western Australia

Post by Southcape »

Your bipod may have 50mm spikes. Spikes are not permitted on your blocks/ spacers under the rear bag.
Linda
Mike Sam
Posts: 15
Joined: Mon Aug 20, 2012 6:04 pm
Location: Brisbane, Australia

Bi Pod Ski type

Post by Mike Sam »

Can the ski type feet on the adjustable bipod have springs in them. I currently use a commerically available bi pod (through the Q store) and have springs in them. Due to weight of the bi pod and recoil from the rifle it does not return the rifle to the same point.
johnk
Posts: 2211
Joined: Sun Sep 07, 2008 7:55 pm
Location: Brisbane
Has thanked: 71 times
Been thanked: 92 times

Post by johnk »

As with all rules, there will be areas where an alternate interpretation might be made. Below are the relevant ICFRA rules.

Viewing F2.19, you might argue that a spike could be used as a levelling device in the same way that FS shooters use their approved block, but as dedicated F/TR shooters like Linda aver otherwise, then you would have to accept the risk of being challenged & the gear disqualified. One might consider under the same rule that the rear bag could be enclosed in a box, but again that would need to be sustained in the same manner.

F2.20.1 permits feet with turned up ends, but not specifically the sliding connection that are permitted in FS rules, though one might consider that there is a strong case for its approval, therefore the question of a "sprung" slide is moot. I recall that such a conformity was expressly excluded in the not too distant future at a SSR-regulated event, though I can find not reason to justify that under the current iteration of the SSRs.

F-Class Technical Rules 2009 02/05/10 F6

F2.16. The F/TR rifle bipod and rear bag may not provide a positive mechanical method for returning the rifle to its point of aim for the previous shot. The rifle, bipod or rear rest may, however, incorporate an integral mechanism for raising and lowering either the butt or foreend provided that it does not contravene rule F2.3. above.

F2.17. No portion of the rifle’s butt or pistol grip will rest on the ground or on any hard surface. Any rear rest employed will not be attached, clamped or held onto the rifle in any way.

F2.18. The contents of front and rear bags will be a dry, finely (< 5 mm) divided substance such as, but not limited to sand, gravel, or grain, packed loosely enough so that the bag will be visibly deformable by pressure of the range officer’s fingers.

F2.19. Any number and type of object(s) (of any material) may be placed beneath each rest to compensate for variations in the height, slope or surface of the firing point, also beneath and around any rear sandbag or beanbag to reduce its rolling, but such objects may not touch the rifle fore-end or butt.

F2.20. The F/O rest(s) or base(s) for each front rest may have up to three “feet”. Each such “foot” may terminate in a spike, which may be pressed into the ground by up to 50mm (about 2”) provided this causes no significant permanent harm or indentation to the firing point.

F2.20.1. The F/TR bipod may have up to two “feet”. Each such “foot” may terminate in a spike, which may be pressed into the ground by up to 50mm (about 2”) provided this causes no significant permanent harm or indentation to the firing point. A “ski” facilitating free recoil is also permitted.

F2.21. Rests may be adjusted after any shot, in order to change the point of aim and/or to compensate for the rifle’s recoil having caused such things as rest movement and/or sandbag/beanbag settling.
Seddo
Posts: 555
Joined: Sun Sep 21, 2008 5:56 pm
Location: Latrobe Valley
Has thanked: 4 times
Been thanked: 11 times

Post by Seddo »

Cant we just had a division where you stick a bipod on the rifle and go and shoot it with a rear bag or your weak hand?

I understand everyone wants to get an advantage but if you want to shoot with a pedistals and pined down heavy rear bags you might as well just shoot BENCHREST.
----------------------
Seddo

Moe City Rifle Club
Ovenpaa
Posts: 70
Joined: Sat Nov 28, 2009 7:07 am
Location: UK/DK

Post by Ovenpaa »

Seddo wrote:Cant we just had a division where you stick a bipod on the rifle and go and shoot it with a rear bag or your weak hand?

I understand everyone wants to get an advantage but if you want to shoot with a pedistals and pined down heavy rear bags you might as well just shoot BENCHREST.
This is why I spend so much time pushing the 'S Class' concept here in the UK, in a nutshell:

Max 12X 'scope
max 6Kg rifle and front bipod
Max 26" barrel
No rear bags
No sighters.
F Class targets (1/2 MOA V Bull)

A few of us are starting to shoot it now in the UK and are having great fun. It can also be shot as a postal competition (Some honesty is required!) The plan is to have targets that can be downloaded so anyone anywhere in the world can shoot it and yes conditions will vary from location to location however that is the nature of shooting and of course the targets can be pasted up at any club range.
macguru
Posts: 1681
Joined: Wed Aug 05, 2009 9:49 am
Has thanked: 228 times
Been thanked: 163 times

Post by macguru »

Has anyone tried one of these ?
Seems very light which is good ....

http://www.mysticprecision.com/wp/1709/ ... installed/
Ovenpaa
Posts: 70
Joined: Sat Nov 28, 2009 7:07 am
Location: UK/DK

Post by Ovenpaa »

I have had my hands on a couple and they are incredibly light, well made and are certainly gaining a following here in the UK. The only possible downside is fine control of cant on uneven surfaces and it does mean you need to be a bag squeezer.
Range Rector
Posts: 126
Joined: Sun Apr 12, 2009 5:39 pm
Location: Victoria
Has thanked: 8 times
Been thanked: 3 times

Re: F/TR Rests

Post by Range Rector »

Anonymous wrote:Any bush lawyers who know what you can and can't get away with?

Bipods may have 50mm spikes or skis. What about metal channels spiked to the ground for the skis to run in?

Can rear bags be spiked to the ground? Or sit in boxes which are? Elevation adjustments in the rear rest are specifically allowed but what about windage?

Any advice gratefully received.

Barry


Contact Adam Davies, he makes a nice F/TR Bipod. Google Davies Triggers.
Tim L
Posts: 974
Joined: Mon May 19, 2014 7:11 pm
Location: Townsville
Has thanked: 43 times
Been thanked: 461 times

Post by Tim L »

Interesting to see that no-one has actually been able to provide an answer on windage.
Let me pose this.

Take a Shadtree rest top and remove all the top bag bits and remove the ACME post. Put a ski on either end and fix it to your accessory rail. You have a "bipod".
Drop a besser block at the front of the mound and stack up your rear bag to get the necessary elevation and you now have a very stable coaxial F/TR rig.

Is it legal?
Macca
Posts: 44
Joined: Sat Jul 30, 2005 3:51 pm

Re: F/TR Rests

Post by Macca »

if it is legal your going to have to shed some serious weight from your rifle to get it under the weight limit with that attached
Tim L
Posts: 974
Joined: Mon May 19, 2014 7:11 pm
Location: Townsville
Has thanked: 43 times
Been thanked: 461 times

Re: F/TR Rests

Post by Tim L »

Macca wrote:if it is legal your going to have to shed some serious weight from your rifle to get it under the weight limit with that attached


Strip the Shadwell down to just the bits you need and its 560g, that's lighter than a Joypod. The besser block isn't attached.
DaveMc
Posts: 1454
Joined: Mon Aug 22, 2011 6:33 pm
Has thanked: 25 times
Been thanked: 93 times

Re: F/TR Rests

Post by DaveMc »

Tim - sounds like you need to get a couple of these ideas out there and working. I am keen to see them in action.
johnk
Posts: 2211
Joined: Sun Sep 07, 2008 7:55 pm
Location: Brisbane
Has thanked: 71 times
Been thanked: 92 times

Re: F/TR Rests

Post by johnk »

I would be inclined to seek prior approval for that Shadetree arrangement. The relevant rule says (emphasis mine):

20.40 (SSR) or F2.19 (ICFRA) Any number and type of object(s) (of any material) may be placed beneath each rest to compensate for variations in the height, slope or surface of the firing point,........

The question is whether or not you are seeking to compensate for the defined elements of the surface of the firing point, or are boosting the height to minimise bipod weight. Further, your besser block will need some method to adjust it level, by which time I believe that you would possibly have an issue with ICFRA F1.9. or our equivalent regarding unfair advantage.

In any case, I've always felt that I benefited from a joystick because I could adjust the shot right up to the time of let off (I'm a stick holder), so I can't get my head around the use of a device that you have to let go of before you shoot because it will recoil towards you.
Post Reply Previous topicNext topic